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3 years ago

7(х - Зу) = y + бу Do it fast thanks

Mathematics

2 answers:

olasank [31]3 years ago

7 0

Answer:

x=4y

7(x−3y)=y+6y

Step 1: Add 21y to both sides.

7x−21y+21y=7y+21y

7x=28y

Step 2: Divide both sides by 7.

7x / 7 = 28y / 7

( the / is an fraction)

spayn [35]3 years ago

5 0

Answer:

x = 4y

Step-by-step explanation:

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For a given set of rectangles, the length is inversely proportional to the width. In one of these rectangles, the length is 58 a

goldfiish [28.3K]

Answer:

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Step-by-step explanation:

Given

Represent Length with L and Width with W

Variation: Inverse Proportion

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Required

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First, we need to determine the constant of variation

$L \alpha \frac{1}{W}$

$L = \frac{k}{W}$

Where

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Substitute the following values: $L = 58; W = 3$

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Solve for k

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$k = 174$

To solve for W when L = 2, we simply substitute values for L and K in the expression $L = \frac{k}{W}$

$2 = \frac{174}{W}$

Solve for W

$2 * W = 174$

$2 W = 174$

$W = 174/2$

$W = 87$

<em>Hence, the width is 87</em>

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