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2 years ago

5

Craig has a 6 ft by 6 ft square garden in his backyard. He wants to transform the garden into a rectangular shape and reduce the

area to 32 square feet. He will do this using his current fencing by reducing the length by x feet and adding it to the width.

1 answer:

Yanka [14]2 years ago

7 0

X = 2
So 6 + 2 = 8
6 - 2 = 4
8 x 4 = 32

(6-x)(6+x) = 32
36 - x^2 = 32
-36. -36
-x^2 = -4
X = 2

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$75*x=90 \\ x= \frac{90}{75} \\ \\ \boxed{x=1.2}$

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LUCKY_DIMON [66]

NOTE THIS IS AN EXAMPLE:

Let t = time, s = ostrich, and g = giraffe.

Here's what we know:

s = g + 5 (an ostrich is 5 mph faster than a giraffe)

st = 7 (in a certain amount of time, an ostrich runs 7 miles)

gt = 6 (in the same time, a giraffe runs 6 miles)

We have a value for s, so plug it into the first equation:

(g + 5)t = 7

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Isolate g so that we can plug that variable value into the equation:

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(6/t + 5)t = 7

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Check by imputing into the second equation:

st = 7

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2 years ago