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22-05-2020
Mathematics

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A rectangular front porch has a perimeter of 30 feet. Its area is 50 square feet. What are the dimensions of the porch?

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Persona180 Persona180

22-05-2020

Answer:

5 ft x 10 ft

Step-by-step explanation:

2w+2l=30

lw=50

l=50/w

2w+2(50/w)=30

2w+100/w=30

2w^2+100=30w

2w^2-30w+100=0

w=5, 10

Therefore, the dimensions are 5x10

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