Respuesta :
The perimeter is multiply the length by 2 and adding it to the width times 2:
P = 2L +2W
The perimeter can't be more than 120 and the length is 22 feet.
So 2L + 2W has to be less than or equal to 120:
2L + 2W ≤120
2(22) + 2W ≤120
44 + 2W≤120
2W ≤ 120 -44
2W≤76
W ≤ 76/2
W ≤ 38 feet
2L +2W = Perimeter
But perimeter of the pool must be no more than 120 feet
So
2*22+2W <= 120
44 + 2W <= 120
Subtract 44 from both sides
44 + 2W - 44 <= 120 - 44
2W <= 76
Divided both sides by 2.
W <= 38
The width of the pool must be less than or equal 38 feet