Question

The length of a rectangular deck is 4 times its width, The deck perimeter is 30 feet. What is the deck's area?

Answer 1

Answer:

36 feet^2

Step-by-step explanation:

Let width be x

Then, length =4x

Perimeter=2(l+b)

30=2(4x+x)

30=2×5x

30=10x

x=30/10

x=3 feet

Width=3 feet

Length=4×3=12 feet

Area=lb

=12×3

=36 feet^2

Answer 2

Step-by-step explanation:

here your answer dear

l×b

4×b

perimeter 2(l+b)

2(4+4)

2(8)

16