P=2l+2w
W=7+3l
So substitute into the original equation
P=2l + 2(7+3l)
78=2l +14 + 6l
-14 -14
—————-
64=8l
8=length
W=7+3l
= 7+3(8)
=7+24
=31
Check your work
Perimeter=8+8+31+31
=78
Hope this helps
47% of 13,500 is 6,345. So this years sales would be $19,845.
Answer:
$27.25
Step-by-step explanation:
Assume that only the four 9 ft by 9 ft walls are to be papered. Each wall will require (9 ft)^2 sq ft of paper, or 81 sq ft of paper. Multiply that by 4 (since there are four walls): 324 sq ft. Now subtract 93 sq ft from 324 sq ft to obtain the answer to this problem.
