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3 years ago

9

Each side of a square x units long is decreased by 9 units. which expression represents the area of the new square in square uni

ts?

1 answer:

Vinil7 [7]3 years ago

7 0

Answer:

a= (x-9)2

a=x2-18x+81

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A 6-pack of toilet paper costs $5.40. A 12-pack of toilet paper costs $11. Which package offers the best price per roll?

igomit [66]

Answer: 6-pack.

Step-by-step explanation:

assuming there’s no tax, the 6-pack would offer the best price per roll.

for 12 rolls w/ the 6 pack it’d be 10.80 which divided by 12 is .9(0)a roll. Where as the 12 for 11 is roughly .91 . So the 6-pack is a better offer.

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2 years ago

The scale drawing of a rectangular room will be enlarged by a scale factor of 4 to create the actual room. The actual area of th

bearhunter [10]

Answer:

The expression is equal to $\frac{150}{4^{2}}$

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Step-by-step explanation:

we know that

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let

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so

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we have

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substitute and solve for y

$4^{2}=\frac{150}{y}$

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3 years ago

A tortoise is walking in the desert. It takes 4 minutes to walk 6.4 meters. What is its speed?

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