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

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

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

the answer is 150.6

step-by-step explanation:

you multiply .02 by 30 and get .6.

and then you multiply 5.00 by 30 and get 150.

hope this !