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AnnZ [28]
3 years ago
5

If 200% of 40% of x is equal to 40% of y, then x is what percent of y?

Mathematics
1 answer:
sp2606 [1]3 years ago
3 0

Step-by-step explanation:

200÷100×40÷100× x = 40÷100 × y

2×0.4 × x = 0.4 × y

2x = y

x = y × 1÷2

x = y × 50%

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8 0
3 years ago
What is the equation of the line that passes through the point (-6,7) and has a slope of -5? Write the equation in slope interce
V125BC [204]

Answer:

y = -5x - 23

Step-by-step explanation:

Write it in point - slope form:

y - 7 = -5(x + 6)

rearrange:

y - 7 = -5x - 30

y = -5x - 23

8 0
3 years ago
A roller coaster has four cars each with the same number of seats. these are 21 passengers seated in the roller coaster, but 3 s
belka [17]

Given:

Number of passengers seated in the roller coaster = 21

Empty seats = 3

Number of cars in roller coaster = 4 (each with the same number of seats)

To find:

An equation that can be used to determine the number of seats in each car.

Solution:

Let s be the number of seats in each car.

Total number of seats in 4 cars = 4s

Using the given information,

Total number of seats = Occupied seated + Empty seats

                                   = 21 + 3

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Now, the required equation is

4s=24

Therefore, the required equation is 4s=24.

Divide both sides by 4.

s=\dfrac{24}{4}

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Therefore, the number of seats in each car is 6.

6 0
3 years ago
The lengths of the sides of a triangle are in the extended ratio 7​: 9 ​: 10. The perimeter of the triangle is 52 cm. What are t
Pavel [41]

Answer:

14 cm, 18 cm, 20 cm

Step-by-step explanation:

7x + 9x + 10x = 26x

equation: 26x = 52

divide each side by 26: x = 2

7 * 2 = 14

9 * 2 = 18

10 * 2 = 20

check if answer is right: 14 + 20 + 18 = 52

I hope this helped, please mark Brainliest thank you so much!!

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Step-by-step explanation:

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