The area of a rectangle is 99yd^2, and the length of the rectangle is 7 wyd more than twice the width. Find the dimensions of the rectangle.

Law = 99 sq.

L = 2w + 7

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Law = 99

(2w + 7)w = 99

2ww + 7w = 99

2ww + 7w - 99 = 0

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the above quadratic equation is in standard form, with a=2, b=7, and c=-99

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to solve the quadratic equation, plug this:

2 7 -99

the roots of the quadratic are:

-9

5.5

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the negative root doesn't make sense as a length, so use the positive root:

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w = 5.5

L = 18

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1/5^2 = 7.56/45

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%