Answer:
140 minutes
Step-by-step explanation:
Using m = (y₂ - y₁)/(x₂ - x₁) , we find the rate at which Snail A moves which is also the gradient of the line with which it moves. Given that Snail A was 12.5 inches above the ground at 10 minutes and 16 inches above the ground at 24 minutes, x₁ = 10 min, y₁ = 12.5 inches, x₂ = 24 min and y₂ = 16 inches.
So, m = (y₂ - y₁)/(x₂ - x₁)
m = (16 - 12.5)/(24 - 10) = 3.5/14 = 0.25
Also, the equation of the line,
(y - y₁)/(x - x₁) = m
(y - 12.5)/(x - 10) = 0.25
cross-multiplying, we have
y - 12.5 = 0.25(x - 10)
expanding the bracket, we have
y - 12.5 = 0.25x - 2.5
adding 12.5 to both sides, we have
y - 12.5 + 12.5 = 0.25x - 2.5 + 12.5
y = 0.25x + 10
Since Snail B started at 3 inches above the ground and climbed 0.3 inch per minute. The snails continued at the same speeds, its distance y moved is y = 0.3t + 3
We now find the time x it takes the snails to cover the same distance by equating both expressions. So,
0.25x + 10 = 0.3x + 3
collecting like terms, we have
10 - 3 = 0.3x - 0.25x
7 = 0.05x
0.05x = 7
x = 7/0.05
x = 140 minutes
(1/p-p)(1/p-q)-q/p^2(1/q+qp^2)
The value of the function f(x) is 600 when x=0 and decreases by 9% for every one-unit increase in x. Complete the equation that represents the function f(x)
its a open answer please help
Answer:
[tex]f(x)=600(0.09)^x[/tex]
Step-by-step explanation:
Since f(x) decreases by 9% for every one unit increase in x, it means that f(x) is an exponential decay function. An exponential function is given by:
f(x) = [tex]ab^x[/tex]; where a is the value of f(x) at x = 0, b is the multiplier and is less than 0 for a decay.
Therefore since at x = 0, f(x) = 0. Hence a = 600. Also, b = 9% = 0.09.
The function f(x) can hence be represented as:
[tex]f(x)=600(0.09)^x[/tex]
Find the percentage change from
40 to 60.
Answer:
50%
thats the answer
y= - 2x + 4
2x + y = 4
Answer:
Infinite amount of solutions
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
Terms/CoefficientsCoordinates (x, y)Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
y = -2x + 4
2x + y = 4
Step 2: Solve for x
Substitution
Substitute in y: 2x + (-2x + 4) = 4Combine like terms: 4 = 4Here we see that 4 does indeed equal 4.
∴ the systems of equations has an infinite amount of solutions.
Answer:
Infinite amount of solutions
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
Left to Right
Equality Properties
Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality
Algebra I
Terms/Coefficients
Coordinates (x, y)
Solving systems of equations using substitution/elimination
Step-by-step explanation:
Step 1: Define Systems
y = -2x + 4
2x + y = 4
Step 2: Solve for x
Substitution
Substitute in y: 2x + (-2x + 4) = 4
Combine like terms: 4 = 4
Here we see that 4 does indeed equal 4.
∴ the systems of equations has an infinite amount of solutions.
Tools -
Question 6
The graph of a function includes the points (4, 5) and (21, 39).
What is the rate of change of the function?
А 34
B
0.5
С
2
O O
D
17
Given y = 50(1.15)*, what type of
function is this?
The sum of two numbers is 59 and the difference is 11
Answer:
35 and 24
Step-by-step explanation:
35 + 24 = 59
35 - 24 = 11
Answer:
24 and 35
Step-by-step explanation:
x + y = 59
x - y = 11, then x = y + 11
substitute for x:
y + 11 + y = 59
simplify:
2y + 11 = 59
subtract 11 from each side of the equation:
2y = 48
divide both sides by 2:
y = 24
x = 35
question in pic! will give brainliest! help asap
Answer:
(5x^2+1)(4x-1) is the answer
Rachel is calculating the interest earned on a deposit of $350 in an account that earns 6% simple interest after 15 years.
I= prt
I=350(6)(15)
I=31,500
Rachel calculates the interest earned to be $31,500 as shown in her work above. Find the correct amount of interest earned.
Answer:
$315
Step-by-step explanation:
You are going to want to use the simple interest formula for this. The one below is modified for solving the interest earned.
I = interest amount
P = principal amount
r = interest rate (decimal form)
t = time
Now we can plug in the values into the equation:
This means that Rachel earned $315 worth of interest in the 15 year period.
Answer: $315
Step-by-step explanation:
HAAAAAALLLLLLLPPPPPPPPPP MEEEEEEEEE
Answer:
9
Step-by-step explanation:
plug -20 into x
-20+3y=7
solve
add 20 to both sides
3y=27
y=9
The cylindrical block has a height of 4 inches and a radius of 2 inches find the total surface area of the block
Answer:
75.4 square inches
Step-by-step explanation:
The cylindrical block has a height of 4 inches and a radius of 2 inches find the total surface area of the block
The formula for the Total surface area of a cylinder
= 2πr (r + h)
= 2 × π × 2( 2 + 4)
= 75.398223686 square inches
= 75.4 square inches
The total surface area of the cylindrical block is 75.4 square inches.
A doll's house is
1/8
the size of a real house.
The length of the doll's house is 1.5m.
How long is the real house?
Answer:
12m,
Step-by-step explanation:
1.5 times 8 =12Collin is paid £99.44 for a 8 hour shift what is Collins pay per hour
I need help on this and if you the first person to get it right i will give you BRANLIST
Answer:
D
Step-by-step explanation:
Since x is squared, that's a non-linear equation because it's the only answer that, when graphed, doesn't form a straight line
Carlos landlord added a markup of 6.5% to their October rent . Carlos rent would have been 750 what is the cost of his rent after the markup
Answer:
c
Step-by-step explanation:
dont know if i am right
URGENT HELP PLZ ILL GIVE BRAINLIEST!!!
Answer:
36
Step-by-step explanation:
The sum of the angles of a triangle is 180 degrees
<A+ <B+ <C = 180
2x+6x+2x = 180
10x = 180
Divide by 10
10x/10 = 180/10
x = 18
We want to find <C
<C = 2x
= 2*18
= 36
y=3/4x+2 linear or non linear
Answer:
linear
Step-by-step explanation:
What is the slope of the line through the points (-4, 2) and (-16, -6)?
Answer:
m=2/3
Step-by-step explanation:
Kayla wanted to choose a statistical question for a project in her math class.
Which of the following is a statistical question?
A. How old are you?
B. How many siblings do you have?
C. What is the favorite sport of the students in your class?
D. What is the address of your school?
Please help!! Geometry, will mark brainliest!
Answer:
n = 36
Step-by-step explanation:
The opposite sides of a parallelogram are congruent , that is
AB = DC , substitute values
[tex]\frac{2}{3}[/tex] n - 5 = [tex]\frac{1}{3}[/tex] n + 7 ( multiply through by 3 to clear the fractions )
2n - 15 = n + 21 ( subtract n from both sides )
n - 15 = 21 ( add 15 to both sides )
n = 36
Answer:
n = 36
Step-by-step explanation:
AB = DC because it is a parallelogram
so:
2/3n - 5= 1/3n + 7
simplify by adding 5 to each side of the equation:
2/3n = 1/3n + 12
simplify by subtracting 1/3n from both sides of the equation:
1/3n = 12
multiply both sides of the equation by 3:
n = 36
Please answer!!! I’ll make brainliest
Answer:
10.3
Step-by-step explanation:
The question is asking to find the length of the hypotenuse of the triangle. This requires us to use the Pythagorean theorem. The legs measure 9 and 5, so we use these to solve for c.
[tex]9^{2} + 5^{2} =c^{2} \\81 + 25 = c^{2} \\106 = c^{2} \\[/tex]
We find the square root of both sides to find the value of c.
10.295 ≈ c
Rounded to the nearest tenth, c ≈ 10.3. The answer is 10.3
Is 16t - 3t equivalent 3t - 16t
Answer:
No, 16t -3t equals 13t while 3t - 16t equals -13t
Answer:
No,
16t= 16x2=32
3t=3x2=6
32-6=26
3t=3x2=6
16x2=32
6-32=-26
Step-by-step explanation:
t=2?
Samantha and her children went into a grocery store and she bought $7 worth of
bananas and peaches. Each banana costs $0.40 and each peach costs $0.50. She
bought a total of 15 bananas and peaches altogether. Determine the number of
bananas and the number of peaches that Samantha bought.
Answer:
5 Bananas and 10 peaches.
Step-by-step explanation:
.4 x 5 = 2
.5 x 10 = 5
5 + 2 = 7
Question 16
What is the slope of a line passing through (2, 2) and (3,5)?
5 because of slope equation
Sam listed the weighs of his friends. They were 98 , 95 , 64 and 93 pounds. Sam said there were no outliers. Do you agree? Explain ?
Answer:
No, 64 doesn't fit
Step-by-step explanation:
64 is an outlier
since it lies too far from the other numbers
Kelly sent packages to her 4 cousins. The
weight of each package was between
12.56 ounces and 15.4 ounces.
Which of the following could be the total
weight of the packages that Kelly sent?
Answer:
c
Step-by-step explanation:
got it right
Step-by-step explanation:
the total weght could be 15,4_12,56=2,84
PLS HELP ILL MARK BRAINLIEST THANK U
Answer:
9,11,16. 4,6,7. 6,8,12
Right. Acute. obtuse
Step-by-step explanation:
obtuse 9,11,16
acute 4,6,7
obtuse 6,8,12
Find the probability that you will roll an even number exactly 5 times when you:
roll a six-sided number cube 10 times.
P =0.246
roll a six-sided number cube 20 times.
P =0.015
Explain why the second result is less.
Answer:
Sample Response: As the number of trials changes, the distribution changes. Since there is a 50% chance of rolling an even number, having a small number of successes is less likely when the number of rolls increases.
Step-by-step explanation:
I just did the Assignment on EDGE2020 and it's 200% correct!
Also, heart and rate if you found this answer helpful!! :) (P.S It makes me feel good to know I helped someone today!!) :)
5.975 x 1024 plsss solve it
In a particular week, Mary
worked 8 hours per day for 3
days and 4 hours per day for 2
days. She was paid $10 per hour.
How much did she earn for that
week?
A. $ 120.
B. $ 320.
C. $ 400.
D. $ 600.
Answer:
B. $ 320
Step-by-step explanation:
[8(3) + 4(2)]10
(24 + 8)10
320