Question

WG-W Online Textboo
WOODALFEPNSNJ
Homework 6.4-6.6
Question 8 of 13 (1 point) | Question Attempt: 1 of Unlimited
Tin
✔ 1
2
X 4
✓5
✓6
8
9
10
11
X 12
13
The Watson family and the Nelson family each used their sprinklers last summer. The water output rate for the Watson family's sprinkler was 35 L per hour. The
water output rate for the Nelson family's sprinkler was 25 L per hour. The families used their sprinklers for a combined total of 60 hours, resulting in a total
water output of 1700 L. How long was each sprinkler used?
Note that the ALEKS graphing calculator can be used to make computations easier.

Answer 1

Answer:

• We have two variables W and N
• W= 35 L
• N = 25L
• Total: 60 hrs respectfully between W and N
• Total Water: 1700 L
• 35W + 25N = 1700 (1)
• W + N = 60 (2)
• Just substitute!
• N = 60 + W
• 35W + 25(60 + W) = 1700
• 35 W + 1500 + 25W = 1700
• 60W + 1500 = 1700
• 60W = 200
• W = 3.33
• Now solve for N