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vodomira [7]
3 years ago
5

A rectangular countertop has a perimeter of 26 feet. its area is 30 square feet. what are the dimensions of the counter?

Mathematics
1 answer:
Sladkaya [172]3 years ago
4 0
P=26=2*(l+L)
⇒ l+L=26:2=13 feet
l=3, L=10

A=l*L=30=10*3

⇒ l=3 feet
    L=10 feet
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Answer: Jason can substitute x=6.5 into the equation. The left side of the equation must be equal to the right side of the equation.

Step-by-step explanation:

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Divide both sides by -12:

\frac{-12x}{-12}=\frac{-78}{-12}\\\\x=6.5

Once Jason solves for x, he has to substitute x=6.5 into the equation and simplify to check his answers.

If his answer is right, the left side of the equation will be equal to the right side of the equation.

Then:

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