Answer:
The maximum width of the pool must be 38 ft
Step-by-step explanation:
Let
y -----> the length of the swimming pool
x ----> the width of the swimming pool
The perimeter of the swimming pool is

we have

substitute


Remember that
The perimeter of the pool must be no more than 120 feet
so
The inequality that represent this scenario is

Solve for x



therefore
The maximum width of the pool must be 38 ft
X^2 -3x -28
= x^2 -7x +4x -28
= x(x -7) +4(x -7)
= (x +4)(x -7)
Answer:
They will deliver on the same day again 21 days later
Step-by-step explanation:
Multiples of 3 and 7
3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
7: 7, 14, 21, 28, 35, 42, 49
They will deliver on the same day again 21 days later
Answer:
Multiply by 3;9
Step-by-step explanation:
9/3=3
12/4=3
18/6=3
27/n=3
N=9