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Katena32 [7]
3 years ago
13

Write the equation: Amy made $75 for 5 hours. At the same rate, how much would she make for 7 hours of work?

Mathematics
2 answers:
stich3 [128]3 years ago
7 0

Answer:

y =75x

Step-by-step explanation:

Lets say we are trying to figure out what she made in 5 hours we would multiply like this : 75(5) =375. So we know that 75 stays the same no matter what and the only thing that changes are her hours. so our equation will be 75x = y

x being hours worked

y being how much she made

jeyben [28]3 years ago
6 0

Answer:

She would make $105 for 7 hours of work.

Step-by-step explanation:

5 hours __ $75

7 hours ___ x = $105

(7 hours * $75) / 5 hours = $105

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Step-by-step explanation:

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The length of a rectangle is nine inches more than its width. Its area is 486 square inches. Find the width and length of the re
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Answer:

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Step-by-step explanation:

The relations between length (L) and width (W) are ...

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Substituting gives ...

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The width of the rectangle is 18 inches; the length is 27 inches.

_____

<em>Comment on factoring</em>

There are a number of ways to solve quadratics. Apart from using a graphing calculator, one of the easiest is factoring. Here, we're looking for factors of -486 that have a sum of 9.

486 = 2 × 3^5, so we might guess that the factors of interest are -2·3² = -18 and 3·3² = 27. These turn out to be correct: -18 +27 = 9; (-18)(27) = -486.

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Read 2 more answers
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