The 95% confidence interval for the proportion of respondents who say yes is of:
(0.5562, 0.6176)
What is a confidence interval of proportions?A confidence interval of proportions has the bounds given by the rule presented as follows:
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which the variables used to calculated these bounds are listed as follows:
[tex]\pi[/tex] is the sample proportion, which is also the estimate of the parameter.z is the critical value.n is the sample size.The confidence level is of 95%, hence the critical value z is the value of Z that has a p-value of [tex]\frac{1+0.95}{2} = 0.975[/tex], so the critical value is z = 1.96.
The remaining parameters, which are the sample size and the estimate, are given as follows:
[tex]n = 990, \pi = \frac{581}{990} = 0.5869[/tex]
The lower bound of the interval is of:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5869 - 1.96\sqrt{\frac{0.5869(0.4131)}{990}} = 0.5562[/tex]
The upper bound of the interval is of:
[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5869 + 1.96\sqrt{\frac{0.5869(0.4131)}{990}} = 0.6176[/tex]
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Can I pleaseeeee get some help solving these problems I’m really struggling
Answer:
2. $19,547.04
3. $10,276.54
4. $16,758.38
Step-by-step explanation:
You have three problems in compound interest with different initial payments, interest rates, and compounding intervals. You want the relationship between the initial payment and the future value.
Future value multiplierThe multiplier of a single payment earning annual interest rate r compounded n times per year for t years is ...
k = (1 +r/n)^(nt)
2.For this problem, r=0.09, n=1, t=9. The multiplier of the payment is ...
k = (1 +0.09/1)^(1·9) = 1.09^9 = 2.17189328
Then the future value of $9000 will be ...
FV = $9000 × 2.17189328 ≈ $19,547.04
3.For this problem, r=0.10, n=12, t=4. The multiplier of the payment is ...
k = (1 +0.10/12)^(12·4) = 1.08333...^48 = 1.48935410
Then the future value of $6900 will be ...
FV = $6900 × 1.48935410 ≈ $10,276.54
4.For this problem, r=0.13, n=12, t=13. The multiplier of the payment is ...
k = (1 +0.13/12)^(12·13) = 1.0108333...^156 = 5.3704484
Then the payment that gives a future value of $90,000 will be ...
P = $90,000/5.3704484 = $16,758.38
__
Additional comment
For the spreadsheet calculation, we used the "Goal Seek" capability to adjust the value of cell F4 to 90000 by changing the value in cell B4.
We could have calculated the multiplier as above, then used it different ways for the different problems. Instead, we used one FV( ) function for all of the problems.
Complete the following table: (Round your final answers to the nearest cent.) Units Unit Cost Beg. Inventory Jan. 1 8 $ 6.00 Apr. 11 24 $ 11.00 May 17 30 $ 14.00 Dec. 5 19 $ 16.00 21 units sold Calculate: LIFO FIFO Weighted-Average Cost of Ending Inventory A C E Cost of Goods Sold B D F
1. The completion of the inventory table is as follows:
Inventory Table:Units Unit Cost Total Cost
Jan. 1 Beg. Inventory 8 $6.00 $48
Apr. 11 Purchases 24 $11.00 $264
May 17 Purchases 30 $14.00 $420
Dec. 5 Purchases 19 $16.00 $304
2. The Cost of Ending Inventory and the Cost of Goods Sold under LIFO, FIFO, and Weighted-Average, are as follows:
LIFO FIFO Weighted-Average
Ending inventory $704 $845 $767.40
Cost of goods sold $332 $191 $268.60
How do the inventory methods differ?FIFO (First-in, First-out) is based on the assumption that the physical flow of goods sold depends on the chronological order of acquisition.
LIFO (Last-in, First-out) assumes that the cost of goods sold should be based on the latest inventory purchases.
The weighted-average method uses the average cost of goods to determine both the ending inventory and the cost of goods sold.
LIFO:
Ending inventory = $704 ($48 + $264 + 28 x $14)
Cost of goods sold = $332 ($1,036 - $704)
FIFO:
Ending inventory = $845 (11 x $11 + 30 x $14 + 19 x $16)
Cost of goods sold = $191 ($1,036 - $845)
Weighted Average:
Ending inventory = $767.40 (60 x $12.79)
Cost of goods sold = $268.60 (21 x $12.79)
Inventory Table:Units Unit Cost Total Cost
Beg. Inventory Jan. 1 8 $6.00 $48
Apr. 11 Purchases 24 $11.00 $264
May 17 Purchases 30 $14.00 $420
Dec. 5 Purchases 19 $16.00 $304
Total 81 $1,036
Units sold 21
Ending inventory 60
Average cost per unit = $12.79 ($1,036/81)
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What is Prince William's full name?
Answer:
Depends on the gravitational force. On Earth, one pound equals 4.41N.
Step-by-step explanation:
The formula for Newton's Second Law of Motion is F=ma, which is Force = mass × acceleration.
The SI unit of mass is the kilogram (kg), so we'll have to convert one pound to kilograms. For practical purposes, one pound equals 0.45kg.
The gravitational force of the Earth is 9.8m/s^2. It is worth noting that each planetary body has its own gravitational force in respect to its mass.
Force = mass × acceleration = 0.45kg × 9.8m/s^2 = 4.41N
This number is only applicable on Earth, and may and will change on a planetary body with a mass different from Earth's.
Factor of 14a–35? Pls Ty
A chemist is mixing a 30% salt solution with a 15% salt solution to make 60 L of a new solution that will contain 20% salt. How much of the 30% solution
should the chemist use?
20 amount of 30% salt solution
How to find the salt solution percentage?
Divide the solute's gram weight by the total weight of the solution, then multiply the result by 100 to get the mass/mass percent of the solution. The amount of solute (measured in grams) per milliliter of solution is known as the mass/volume percent.
Let x be the amount of 30% salt solution
Then, 60-x = amount of 15% salt solution
Salt content of the first solution + salt content of second solution = salt content of the mixture
∴ 0.30x + 0.15(60-x) = 0.20*60
0.30x + 9 - 0.15x = 12
0.15x = 3
x = 20
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4. A Bag of marbles has 4 yellow, 5 red, and 1 purple. Create a situation that would satisfy the following:
a) Something that is IMPOSSIBLE to
happen.
b) Something that is EQUALLY
LIKELY to happen.
c) Something that is LIKELY to
happen.
According to the solving Probability the value are as follows.
a) P(Blue)= 0/10
b) P(Red)= 5/10
c) P(Red or Yellow)= 9/10
What is probability?The definition of probability is "How likely something is to happen."
Probability is indeed a number ranging from 0 to 1 that expresses the likelihood that an event will take place as specified.
First, 0 P(E) 1 (where P(E) specifies the probability of an event E) and second, the sum of the probabilities of any collection of mutually and exclusive exhaustive occurrences equals 1 are the two characteristics that define a probability.
According to the given data:We have a Bag of marbles has 4 yellow, 5 red, and 1 purple.
Total balls in a bag= 4+5+1=10 balls.
Something that is IMPOSSIBLE to happen.
P(Blue)= 0/10
Something that is EQUALLY LIKELY to happen.
P(Red)= 5/10
Something that is LIKELY to happen.
P(Red or Yellow)= 9/10
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Bookwork code: K45 not allowed
The number line below shows information about a variable, p.
Select all of the following values that p could take:
-4, 0, -6, 5, -1, -2.5
T
T
р
-5 -4 -3 -2 -1 0 1 2 3 4 5
✓ Scroll down
A number line is a simple graph with numerical increments spaced evenly. The numbers on the line determine how the number on the line can be answered. The number's application is determined by the question to which it corresponds, such as when plotting a point.
What is meant by number line?A number line is a horizontal line with evenly spaced numerical increments. The numbers on the line will determine how to answer the number on the line. The number's use is determined by the question that goes with it, such as plotting a point.
The number line is a straight line with divisions at equal intervals, similar to a scale. You can choose any point as "0," and all positive numbers will be to the right of the "0," and all negative numbers will be to the left of the "0." Q.
Therefore,
The third number line correctly provides the solution to the statement -5 + (-4).Plot 1's solution is (-5) + (-2) because both arrows point 4 units to the left.Plot 2's solution is (5 + 2) because both arrows point 4 units to the right.Plot 3's solution is (5) + (2) because one arrow points 4 units to the left and the other points 4 units to the right.The plot 4 solution is (5 + 2) because one arrow points 4 units to the left and the other points 8 units to the right.As a result, the third number line is the one that shows the solution 5 + (-4).To learn more about number line refer
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I really need help to this answer ASAP.
(x - 5)²
Step-by-step explanation:
use formula
[tex](x - y) {2} = x {}^{2} - 2xy + y {}^{2} [/tex]
1. (03.03 MC)
The subtotal for Abdiel's takeout order is $24.30. What will Abdiel's total be if he uses a coupon for 12% off the subtotal and leaves a 25% tip before the discount? (2 points)
O $26.73
$27.46
$33.02
$33.29
Abdiel's total if he uses a coupon for 12% off the subtotal and leaves a 25% tip before the discount is $27.46
The correct answer option is option B
What is Abdiel's total?Abdiel's subtotal = $24.30Abdiel's coupon = 12%Tip = 25%Amount of total after discount = 12% × $24.30
= 0.12 ×24.30
= $2.916
Amount of abdiel's tip = 25% × $24.40
= 0.25 × 24.30
= $6.075
Abdiel's total after discount before tip = (Amount of abdiel's tip + Abdiel's subtotal) - Amount of total after discount
= (6.075 + 24.30) - $2.916
= $30.375 - $2.916
= $27.459
Approximately,
$27.46
Therefore, the total amount Abdiel paid after discount before tip is $27.46
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Randy is 8 years old. His brother is twice as old as randy. Randys sister is three years younger than randy. Write a expression to represent the age of randys brother
The expression that represents the age of randy's brother is
2x.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Randy age = 8 years old
Randy's brother age = 2 x 8 = 16
Randy's sister age = 8 - 3 = 5
The expression that represents the age of randy's brother.
Let the age of Randy = x.
= 2x
= 2x
= 2 x 8
= 16 years old.
Thus,
The expression that represents the age of randy's brother is
2x.
Where x is the age of Randy.
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Which is the correct answer ????
My sister has three Maltese puppies. Scout weighs 8 1/3 pounds, Kenadi weighs 3 1/8 pounds, and Major weighs 8 1/5 pounds. What is the order of the puppy’s weights from least to greatest?
A.8 1/3,8 1/5 3 1/8
B.8 1/3,3 1/8, 8 1/5
C.3 1/8,8 1/3,8 1/5
D.3 1/8, 8 1/5,8 1/3
Answer: D because 8 1/5 is smaller than 8 1/3
Zoe wants to buy 6 tins of beans for the cheapest possible price. Shop A and Shop B both have a special offer. Shop A 5% off the normal price of 48p each Shop B 65p each Buy 2 get 1 free Which shop should Zoe buy the beans from? You must show how you get your answer.
Mr. Abbas has bought a Villa in Saar recently for 80,000 BD. He wants to sell it at a 40% profit. House prices are projected to rise on average by 7% a year.
i) How many years will Mr. Abbas have to wait before selling?
The 80,000 BD Villa in Saar Mr. Abbas plans to sell at a 40% profit , with the annual house price growth rate of 7% (compounded) gives the number of years Mr. Abbas has to wait as approximately 5 years
What is the growth rate on an value?The growth rate is the rate at which the value changes within a specified period.
The amount Mr. Abbas bought the Villar in Saar = 80,000 BD
The profit at which he intends to sell it = 40% = 0.4
The rate at which the house prices rise on average = 7 % per annum
The formula for future value, FV is presented as follows;
[tex]FV = PV\cdot \left(1+\dfrac{r}{100} \right)^n[/tex]
Where;
FV = The future value = 80,000 BD + 0.4 × 80,000 BD = 112,000 BD
PV = The present value = 80,000 BD
r = The rate at which the house prices increases annually
n = The number of years
Which gives;
[tex]112,000 = 80,000\cdot \left(1+\dfrac{7}{100} \right)^n[/tex]
[tex]n = \dfrac{ln\left(\dfrac{112,000 }{80,000}\right) }{ln\left(1+\dfrac{7}{100} \right) } \approx 5[/tex]
The number of years Mr. Abbas has to to wait, n ≈ 5 years
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What is the answer?? 3(b-5)<-2b
Answer:
b < 3
Step-by-step explanation:
3 ( b - 5 ) < - 2b
3 ( b ) - 3 ( 5 ) < - 2b
3b - 15 < - 2b
3b + 2b < 15
5b < 15
b < 15/5
b < 3
Please help please and thanks ..
In the given triangle JKL , NO = 26 units and JK = (7x + 17) units, then the value of x is equal to 5 units.
As given in the question,
In the given triangle JKL,
M, N ,O are the mid-points of the side JK, JL, KL of the triangle respectively.
Measure of NO is equal to 26 units
Measure of JK is equal to (7x + 17) units
Using mid- point theorem we have,
In triangle JKL,
NO is half the measure of opposite side JK
NO = 1/2 ( JK)
⇒ 26 = 1/2 ( 7x + 17 )
⇒ 7x + 17 = 26 × 2
⇒ 7x + 17 = 52
⇒ 7x = 52 - 17
⇒ 7x = 35
⇒ x= 5 units
Therefore, for the given triangle JKL , NO = 26 units and JK = (7x + 17) units, then the value of x is equal to 5 units.
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Ben starts walking along a path at 3 mi/h. One and a half hours after Ben leaves, his sister Amanda begins jogging along the same path at 6 mi/h. How long (in hours) will it be before Amanda catches up to Ben?
It would take Amanda 2.25 hours to catch up with Ben
Speed is the ratio of distance to time. It is given by:
Speed = distance/time
Given that Ben covers a distance d at time t, hence:
3 = d/t
d = 3t
Since Amanda leaves One and a half hours (1.5) after Ben leaves, hence Time = t - 1.5
5 = d/(t - 1.5)
d = 5t - 7.5
Since they catch up, hence:
3t = 5t - 7.5
2t = 7.5
t = 3.75 hours
Time for Amanda = t - 1.5 = 3.75 - 1.5 = 2.25 hours
Hence it would take Amanda 2.25 hours to catch up with Ben.
Use the compound interest formula to compute the total amount accumulated and the interest earned.
$3500 for 2 years at %3 compounded quarterly.
The total amount accumlated after 2 years is ____.
(Round to the nearest cent as needed.)
The total amount accumulated after 2 years is $3704. 0
How to determine the compound interestThe formula for calculating compound interest is expressed as;
A = P ( 1 + r/ n) ^nt
Where;
A is the final amountP is the principal amountr is the ratet is the timen is the number of times interest applied per periodNow, let's substitute the values into the formula, we have;
A = $3500 ( 1 + 0. 03 / 0. 25) ^(0.25× 2)
Find the exponent
A = $3500 ( 1 + 0. 03 / 0. 25) ^0.5
A = $3500( 1+ 0. 12)^0. 5
Expand the bracket
A = $3500 (1. 12)^0. 5
A = $3500(1. 05)
multiply the values
A = $3704. 0
Hence, the value is $3704. 0
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After arriving in Australia, Jason exchanged $750 of US currency for $1,041.67 Australian
dollars. Complete the two statements based on this currency exchange. Round to the
nearest hundredth.
9. What is the exchange rate of US dollars per Australian dollar?
What is the exchange rate of Australian dollars per US dollar?
The exchange rate of US dollars per Australian dollar is 0.72
The exchange rate of Australian dollars per US dollar is 1.39
Exchange rate
Exchange rate is the price of a country's money in relation to another country's money and it is “fixed” when countries use gold or another agreed-upon standard, and each currency is worth a specific measure of the metal or other standard.
Given,
After arriving in Australia, Jason exchanged $750 of US currency for $1,041.67 Australian dollars. Complete the two statements based on this currency exchange.
Here we need to find the exchange rate of US dollars per Australian dollar and Australian dollars per US dollar then round it to the nearest hundredth.
According to the given details,
Total amount in US dollars = $750
Converted amount in Australian dollar = $1,041.67
When we divide the US dollar by the Australian dollar then we get the value of one dollar rate,
=> 750/1041.67
=> 0.719
When we round off it to the nearest hundredth then we get the exchange rate of $1 is 0.72
Similarly, now we have to divide the Australian dollar by the US dollar then we get the value of one dollar rate,
=> 1041.67/750
=> 1.388
When we round off it to the nearest hundredth then we get the exchange rate of $1 is 1.39.
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Determine the axis of symmetry of the graph of the following parabola. f(x)=3(x−5)2+1 Give your answer in the form x=h.
The axis of symmetry of the parabola, having the equation, f(x) = 3·(x - 5)² + 1 is the line x = h = 5
What is a parabola?A parabola is the locus of a point that moves such that the distance of the point from a fixed point is the same as the distance of the moving point from a fixed line.
The graph of a parabola has the shape of an open umbrella
The given equation for the parabola is; f(x) = 3·(x - 5)² + 1
The equation is given in the vertex form, f(x) = a·(x - h)² + k, where;
(h, k) = The vertex of the parabola
The axis of symmetry of a parabola, which is the line that divides the parabola in two, passes through the vertex of the parabola
Comparing the equation, f(x) = 3·(x - 5)² + 1, to the vertex form of a parabola, gives;
a = 3
(h, k) = (5, 1) (The vertex of the parabola)
Which gives; h = 5
The equation of the axis of symmetry is therefore the line, x = h = 5
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What is the explicit form of an arithmetic sequence if the
first term is 5 and the recursive formula is an an-1 + 8?
=
The explicit form of the arithmetic sequence is
5, 13, 21, 29, .....
What is arithmetic sequence?
A sequence of numbers is said to be in arithmetic progression if the difference between the consecutive terms of the series are same
If the first term is a, common difference is d, then nth term of the sequence is given by
[tex]a_n = a + (n-1)d[/tex]
The recursive form of the given arithmetic series is
[tex]a_n = a_{n-1} + 8[/tex]
First term [tex]a_1 = 5[/tex]
[tex]a_2 = a_1 + 8\\a_2 = 5 + 8\\a_2 = 13[/tex]
[tex]a_3 = a_2 + 8\\a_3 = 13 + 8\\a_3 = 21[/tex]
[tex]a_4 = a_3 + 8\\a_4 = 21+8\\a_4 = 29[/tex]
So the explicit form of the arithmetic sequence is
5, 13, 21, 29, .....
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Erik has 2 bags of bird seed. One bag has
10 pounds of seed, and the other bag has
8 pounds of seed. He fills
7 bird feeders
with 2 pounds each. Write and solve
an
equation to find how many
pounds of bird
seed are left.
Answer:
(10 + 8) - (7 * 2) = x, 4 pounds of birdseed left
Step-by-step explanation:
For the first part of our equation, we will find the total amount of pounds of seeds among the bags (addition).
For the next part, we will find out how much of the bird seed is used (subtraction).
Then, it will equal whatever is left.
(10 + 8) - (7 * 2) = x, x = pounds of bird seed left
Now, we will solve.
(10 + 8) - (7 * 2) = x
(18) - (14) = x
x = 4 pounds of birdseed left
Draw and label a set of axes on your graph paper. Plot and label the following points: (1,3) , (4,2) , (0,5) , and (5,1).
We have to label a graph with the following points: (1,3), (4,2), (0,5), and (5,1).
How to know if a point lies in the graph of a function?All the points (and only those points) which lie on the graph of the function satisfy its equation. Thus, if a point is on te graph of a function, then it must also satisfy the function.
To plot the graph with the points follow all the steps given below;
Points are (1,3) , (4,2) , (0,5),and (5,1).
Step1 The coordinate of the graph are; (1,3) , (4,2) , (0,5),and (5,1).
Step2 Plot the coordinate 1 on the x-axis and 3 on the y-axis.
Step3 Plot coordinate 4 on the x-axis and 2 on the y-axis.
Step4 Plot the coordinate 0 on the x-axis and 5 on the y-axis.
Step5 Plot the coordinate 5 on the x-axis and 1 on the y-axis.
Step6 Then Draw a line with the help of the scale and meet all the points.
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Danielle cecils driver rating factor is 1.60 and her car is in age group d and insurance rating group d. She wants 100/300 bodily injury and $50000 property damage coverage a)anual base premium B) anual premmium
a. The annual base premium when Danielle cecils driver rating factor is 1.60 and her car is in age group is $709.
b. The annual premium is $1134.40
What is a premium?It should be noted that the annual premium simply refers to the amount of premium that's paid yearly by the entity. The insurance company has premium payment options for the clients.
The annual base premium will be:
= Liability premium + Collision premium + Comprehensive premium
= $383 + $240 + $86
= $709
The annual premium will be:
= Annual base premium × Driver rating factor
= $709 × 1.60
= $1134.40
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A surveyor is determining the area of a triangle piece of land bordered by three stretts. In the coordinate plane,the vertices of the triangle are at 0,0 -100,-300,and 200 -200. One unit in the coordinate plane represents 1m.what is the area of piece of land
The area of the piece of land with coordinates (0, 0), (-100, 300) and (200, -200) is as measured by the surveyor is 4000 square meter
How to calculate the area of the piece of the landThe given coordinates being plotted as
A (0, 0)
B (-100, 300)
C (200, -200)
Area of triangle is solved by 0.5 * base * height
dimensions from attached plot, BC = 316.2, Aa = 253
= 0.5 * BC * Aa
= 0.5 * 253 * 316.2
= 39 999.3 approximately 40 000
The plot gave an area of 40 000 square units on paper converting using the given scale which is: One unit in the coordinate plane represents 1m
1 unit = 1 m
1 square unit = 1 square meter
4000 square units = ?
cross multiplying
? = 4000 square units
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A math class has 3 girls and 7 boys in the seventh grade and 4 girls and 4 boys in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she selects are both boys? Write your answer as a fraction in simplest form.
The probability that the selections are both boys is 7/10
How to determine the probability that the selections are both boys?The given parameters in the question are
Seventh grade
Boys = 7
Girls = 3
Eight grade
Boys = 4
Girls = 4
The probability of selecting a boy is calculated as
P(Boy) = Number of boys/Number of students
So, we have
Seventh grade
Boys = 7
Girls = 3
P(boy) = 7/10
Eight grade
Boys = 4
Girls = 4
P(boy) = 4/8
The probability that the selections are both boys is
P = P(boy) * P(boy)
So, we have
P = 7/10 * 4/8
Evaluate
P = 7/20
Hence, the probability is 7/20
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A bank found that 2.5% of its loans to new small businesses become delinquent. If 400 small businesses are selected randomly from the bank’s files, what is the probability that at least 12 of them are delinquent? Use a TI-83, TI-83 plus, or TI-84 calculator to find the probability.
.3155
The probability that at least 12 are delinquent is given as 0.3155
How to solve for the probabilityProbability can be defined as the likelihood of getting an outcome out of other outcomes.
We have the mean u = np
where n = 400
p = proportion = 2.5% = 0.025
= 400 x 0.025
= 10
we have to find the population standard deviation
= [tex]\sqrt{np(1-p)}[/tex]
= √400 x 0.025 (1 - 0.025)
= 3.1225
P (X ≥ 12)
= P(X ≥ 11.5)
= 11.5 - 10 / 3.1225
= 1 - P(z < 0.4804)
= 1 - 0.6845
= 0.3155
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what fraction of the numbers from 1 to 20 contain the digit 7
Solve the following using the elimination or substitution method. Show all work.
Jim has 65 coins in his pocket. All of the coins are nickels and dimes. If the total value of his coins is $5.10, how many nickels or dimes does he have?
Step-by-step explanation:
Jim has 65 coins in his pocket. All of the coins are nickels and dimes. If the total value of his coins is $5.10, how many nickels or dimes does he have?
nickels = n
dimes = d
We use:
d + n = 65
0.10d + 0.05n = 5.10
solve for d:
d + n = 65
d + n - n = 65 - n
d = 65 - n
substitute in for the second equation: d = 65 - n
0.10(65 - n) + 0.05n = 5.10
6.5 - 0.10n + 0.05n = 5.10
6.5 - 0.05n = 5.10
6.5 - 0.05n - 6.5 = 5.10 - 6.5
- 0.05n= -1.4
n = 28
so there are 28 nickels
Now, solve for d: when n = 28
d + n = 65
d + 28 = 65
d = 37
so there are 37 dimes
Jim has 28 nickels and 37 dimes in his pocket. which is determined by the substitution method.
What is the equation?The term "equation" refers to mathematical statements that have at least two terms with variables or integers that are equal.
Let the number of nickels would be n
Let the number of dimes would be d
As per the given question,
d + n = 65 ....(i)
0.10d + 0.05n = 5.10 ....(ii)
From equation (i),
d + n = 65
d + n - n = 65 - n
d = 65 - n
Substitute in for the equation(ii): d = 65 - n
0.10(65 - n) + 0.05n = 5.10
6.5 - 0.10n + 0.05n = 5.10
6.5 - 0.05n = 5.10
6.5 - 0.05n - 6.5 = 5.10 - 6.5
- 0.05n = -1.4
n = 28
This means there are 28 nickels
Substitute the value of n = 28 in the equation (i),
d + n = 65
d + 28 = 65
d = 37
So there are 37 dimes
Thus, Jim has 28 nickels and 37 dimes in his pocket.
Learn more about the equation here:
brainly.com/question/10413253
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line x is the perpendicular bisector of segment ZY
what does YT equal
Answer:
Step-by-step explanation:
ZT=YT
x+3=3x-11
x-3x=-11-3
-2x=-14
x=-14/-2=7
YT=3×7-11=21-11=10
YT=10