The total amount of fence around a rectangular play area must be at least 90 feet, but no more than 120 feet. if the length of the play area is twice as long as the width, find the possible widths of the play area.
11 ≤ w ≤ 15
15 ≤ w ≤ 20
21 ≤ w ≤ 30

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

mia khalifa

step-by-step explanation: