What is the width of a rectangle whose area is 60 square inches and whose length is 5 inches?

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What is the width of a rectangle whose area is 60 square inches and whose length is 5 inches?

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Answer 1 · 2018-03-07T09:40:00

See a solution process below:

Explanation:

The formula for the area of a rectangle is:

$A = l \times w$ $A = l xx w$

Substituting:

$60 {in}^{2}$ $60"in"^2$ for $A$ $A$
$5 in$ $5"in"$ for $l$ $l$

And solving for $w$ $w$ gives:

$60 {in}^{2} = 5 in \times w$ $60"in"^2 = 5"in" xx w$

$\frac{60 {in}^{2}}{5 in} = \frac{5 in \times w}{5 in}$ $(60"in"^2)/(color(red)(5)color(red)("in")) = (5"in" xx w)/(color(red)(5)color(red)("in"))$

$(60"in"^color(red)(cancel(color(black)(2))))/(color(red)(5)cancel(color(red)("in"))) = (color(red)(cancel(color(black)(5"in"))) xx w)/cancel(color(red)(5)color(red)("in"))$

$(60"in")/color(red)(5) = w$

$12"in" = w$

$w = 12"in"$

The width is 12 inches

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What is the width of a rectangle whose area is 60 square inches and whose length is 5 inches?

1 Answer

Explanation:

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