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3 years ago

1. A car dealership marks up their cars 7% in order to make a profit. Find the selling price

Mathematics

1 answer:

matrenka [14]3 years ago

6 0

Answer:

1) selling price is 1.07 multiplied by whatever they paid for the car

2) selling price is $1.35

Step-by-step explanation:

2) to get 80% markup on 0.75 you can multiply 0.75 x 1.8

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A paper cup holds a volume of 6 fluid ounces. Is the volume of 6 paper cups greater than 5 cups?

joja [24]

Answer:

Step-by-step explanation

8 oz per cup meaning 40oz in 5 paper cups

6 oz per paper cup meaning 36 oz in 6 paper cups

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3 years ago

The graph of a proportional relationship contains the point (20, 4).

soldier1979 [14.2K]

Answer:

$y=\frac{1}{5}x$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem we have

$point (20,4)$

Substitute the values and solve for k

$k=y/x$

$k=\frac{4}{20} =\frac{1}{5}$

therefore

the equation of the line is equal to

$y=\frac{1}{5}x$

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