If you travel at 70 mph, write an equation to show how far you have traveled (y) in x hours
Answer:
y = 70x
Step-by-step explanation:
Please help.
Is algebra.
Answer:
7 acd 8 use mathpapa or desmos graphing calculator
Step-by-step explanation:
7 acd 8 use mathpapa or desmos graphing calculator
A store advertises 15% off an item that regularly sells for $300. what is the sale item? how is a 15% discount similar to a 15% decrease? Explain.
Answer: $255
Step-by-step explanation:
A store advertises 15% off an item which sells for $300. The sale item will then be calculated as:
= $300 - (15% × $300)
= $300 - (0.15 × $300)
= $300 - $45
= $255
The sales price is $255.
A 15% discount is similar to a 15% decrease because in both cases, one has to subtract the value of 15% from the selling price.
Solve each of these equations.
1. 2(x+5)=3x+1
2. 3y−4=6−2y
3. 3(n+2)=9(6−n)
Answer:
1. x=9
2. y=2
3. n=4
hello just helping out!
Three cards are selected one after the other from a standard deck of 52 cards.
What is the probability that all three cards are spades if none of the first two cards is replaced?
Answer:
[tex]\frac{11}{850}[/tex]
Step-by-step explanation:
Let's see
The probability of the first card being a spade is 13/52 (as there's 13 spades in the deck.
The probability for the second card is 12/51 (because there's 12 spades left in 51 cards total).
The probability for the third is - you guessed it! - 11/50
so the total probability is:
[tex]\frac{13}{52} \cdot \frac{12}{51} \cdot \frac{11}{50} = \frac{1}{4} \cdot \frac{4}{17} \cdot \frac{11}{50} = \frac{1}{17} \cdot \frac{11}{50} = \frac{11}{850}[/tex]
A more generic solution:
Let's use the binomials to find the solution with combinations:
We need to pick 3 cards out of 13. This can be done in
[tex]\binom{13}{3} = \frac{13!}{3!\cdot10!}[/tex] ways.
And the total number of ways to pick 3 cards out of 52 is:
[tex]\binom{52}{3} = \frac{52!}{3!\cdot 49!}[/tex]
So the probability is:
[tex]\frac{ \binom{13}{3} }{ \binom{52}{3} } = \frac{ \frac{13!}{3!\cdot 10!} }{ \frac{52!}{3!\cdot 49!} } = \frac{ \frac{13!}{10!} }{ \frac{52!}{49!} } = \frac{13 \cdot 12 \cdot 11}{52 \cdot 51 \cdot 50}[/tex]
Which again brings us to the result computed before.
Admission into an amusement park for 4 children
and 2 adults is $116.90. For 6 children and 3 adults,
the admission is $175.35. Assuming a different price
for children and adults, what is the price of the child's
ticket and the price of the adult ticket?
Answer:
A child ticket costs $16.50 and an adult ticket costs $25.45.
what is the product of (4y-y)(9+4x+3y)
Step-by-step explanation:
(4y-y)(9+4x+3y)
36y+16xy+12y^2-9y-4xy-3y^2
collect like terms
36y-9y+16xy-4xy+12y^2-3y^2
=27y +12xy+9y^2
a student borrow some money from his father at 2% simple interest to buy a car he paid his father 360 and interest after 3 years how much money did he intentionally borrow from his father
Answer:
$6000.
Step-by-step explanation:
360/3(years)= 2% of Principle
so
120=2% of principle
2%=1/50
120*50=6000
Ans.=$6,000
How do I solve this???
17+36=z-37 what is z
Answer:
The correct answer is 90
Step-by-step explanation:
17 + 36= z- 37 ADD 17 AND 36
53= z-37 BRING 37 OVER TO 53 AND ADD
z = 90 FINAL ANSWER
Factor the expression 8a + 16c
-2(a - 8)
6(a - 3c)
4c(2a - 4)
8(a + 2c)
Part B
Based on your answer to the previous question, evaluate the expression for a=4 and c= 3.
-30
48
80
8
I don’t understand what it means by find the mid points someone pls help I’m so behind
Find two integers whose sum is -5 and product is -14
Answer:
-7 and 2
Step-by-step explanation:
I hope this helps :)
Let me know if you need a full explanation
Answer:
Step-by-step explanation:
a+b=-5
a=-5-b, we are also given
ab=-14, using a found above makes this become
(-5-b)b=-14
-5b-b^2=-14
b^2+5b-14=0
(b+7)(b-2)=0
So the numbers are -7 and 2.
solve the inequality
10 - 6x < 70
Answer:
x > -10
Step-by-step explanation:
10 - 6x < 70
-10 -10
-6x<60
/-6. /-6
(flip sign)
x>-10
Answer:
This is the answer x < 5
What is y, when x = 7. y = 3x + 10
PLEAS HELP I NEED IT RN
Answer: y = 31
Step-by-step explanation:
y = 3x + 10
y = 3(7) + 10 Plug in the 7 for x, because it shows x = 7 in the question.
y = 21 + 10
y = 31
find the perimeter using Pythagorean theory
Answer:
Perimeter: 32
X = 5
Step-by-step explanation:
If you draw a line to make the triangle the longer leg is equal to 4 then the shorter leg is 3 since your subtracting 13 - 10 to get 3 for the shorter leg. you use Pythagorean theorem that would equal 3^2 + 4^2 = 25 if you take the square root of 25 its 5. So now you know x = 5. Then add all the sides together to get the perimeter.
where the area of the base is 6.8\text{ m}^26.8 m 2 and the height of the pyramid is 8.6\text{ m}8.6 m. Round your answer to the nearest tenth of a cubic meter.
r = radius h = height s = slant height V = volume L = lateral surface area B = base surface area A = total surface area π = pi = 3.14159 √ = square root
The Volume of pyramid is 19.5 [tex]m^{3}[/tex].
What is pyramid?A pyramid is a polyhedron formed by connecting a polygonal base and a point, called the apx. Each base edge and apx form a triangle, called a lateral face.
What is volume of pyramid?The volume of a pyramid refers to the space enclosed between its faces.
Volume of pyramid = (1/3) (Base area * height of pyramid )
According to the question
Area of the base = 6.8 [tex]m^{2}[/tex]
Height of the pyramid = 8.6 m
now,
using the formula of Volume of pyramid
Volume of pyramid = (1/3) (Base area * height of pyramid )
substituting the values
Volume of pyramid = (1/3) ( 6.8 * 8.6 )
= 19.49 [tex]m^{3}[/tex]
Rounding off to nearest tenth of a cubic meter
Volume of pyramid = 19.5 [tex]m^{3}[/tex]
Hence, the Volume of pyramid is 19.5 [tex]m^{3}[/tex]
To know more about pyramid here:
https://brainly.com/question/17615619
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The measure of angle 1 is 125 degrees what is the measure of angle 2?
Hey um does anyone wanna help me?
Answer:
1. Multiples
2. factors
3.multiples
4.factor
5.factor
Step-by-step explanation:
The Jones family wants to enclose their circular garden with a fence. To the nearest foot, what is the minimum length of fencing they need to buy?
Answer:
The answer is "393 ft".
Step-by-step explanation:
Please find the complete question in the attachment file.
Using formula:
[tex]\to \bold{C =2\pi r}\\\\[/tex]
put the value in the above formula:
[tex]=2\times \frac{22}{7} \times 62.5\\\\=\frac{2750}{7}\\\\=392.857143 \approx 393[/tex] ft
Find the selling price. Cost to store: $50
Markup: 10%
The selling price is $
The relationship between the time since Captain Summers became a ship captain and his total number of hours at sea can be modeled by the equation y = 800x + 2200, where x is the time since he became a ship captain in years and y is his total number of hours at sea. How many hours at sea did Captain Summers have when he first became a ship captain?
Answer:
2200
Step-by-step explanation:
The radius of a circle is 8 units.
What is the diameter of the circle?
units
Answer:
16
Step-by-step explanation:
radius is 1/2 of diameter
Answer:
16 units
Step-by-step explanation:
When a circle is inscribed in a square, the length of each side of the square is equal to the diameter of the circle. That is, the diameter of the inscribed circle is 8 units and therefore the radius is 4 units.
ill mark brainlist plsshelp
Which properties describe the graph of (x + 5)2 + (y – 10)2 < 169?
a. circle with center at (–5, 10), shading inside the circle
b. circle with center at (5, –10), shading inside the circle
c. circle with center at (5, –10), shading outside the circle
d. circle with center at (–5, 10), shading outside the circle
Answer:
a. circle with center at (–5, 10), shading inside the circle
Step-by-step explanation:
I have a quizlet for those towards the end of the course aka Cameron its
HELI KADAKIA to study ofc
The graph of (x + 5)² + (y – 10)² < 169. The circle with centre at (5, –10), shading inside the circle. The correct option is B.
What is a circle?A circle is a two-dimensional geometry on the plane having a centre point and the circular line is drawn equidistant from the centre point. A graph is the representation of the data on the vertical and horizontal coordinates so we can see the trend of the data.
The given equation of the graph is f(x + 5)² + (y – 10)² < 169. When we plot the equation we get the circle having an inside shaded part. The coordinates of the circle are (5,-10).
Therefore, the graph of (x + 5)² + (y – 10)² < 169. The circle with centre at (5, –10), shading inside the circle. The correct option is B.
To know more about circles follow
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9.
Find the slope of the line that passes through the pair of points. (2, 6), (7, 0)
A. [tex]-\frac{6}{5}[/tex]
B. [tex]\frac{5}{6}[/tex]
C. [tex]-\frac{5}{6}[/tex]
D. [tex]\frac{6}{5}[/tex]
Answer: A. -6/5
Use the slope formula to find the slope m .
m = − 6 /5
Step-by-step explanation:
Please helppppp!!!
Convert 2/7 to a decimal.
Round to the nearest hundredth.
Answer:
0.29
Step-by-step explanation:
I know
37.286 to the nearest hundredth
Answer:
37.3
Step-by-step explanation:
Answer:
37.29
Step-by-step explanation:
TRIG HW; find missing side by using trignometry
Answer:
Step-by-step explanation:
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
the above is really helpful if you don't have a brain. :P
for 7 we only need Pythagoras's theorem, know it?
[tex]c^{2}[/tex] = [tex]a^{2}[/tex] + [tex]b^{2}[/tex]
out of curiosity.. does the above formula seem "impossible" ? or does it make sense?
[tex]c^{2}[/tex] = [tex]12^{2}[/tex] + [tex]16^{2}[/tex]
[tex]c^{2}[/tex] = 144 + 256
[tex]c^{2}[/tex] = 400
c = [tex]\sqrt{400}[/tex]
c = 20
x= 20
for 8 we do need the above list of trig functions. we want to find the Hyp x and we know an angle and the adjacent side sooo use Cos .. b/c we can see it's got those parts in it
Cos(60) = 18 / x
I'll show you the algebra we need to use to get this formula so that we can find x
A = B / x ( this is how it looks above )
x = B / A , now just put in the parts
x = 18 / Cos(60) now solve it w/ your calculator.. :P Cos(60) happens to be 1/2 so you could have done this w/o your calculator :/
x = 36
there you go, :)
90aw - 54ak - 210 yw + 126yk +
Answer:
Step-by-step explanation: