There are 80 cups of water in 5 gallons of water. What is the total number of cups of water in one half-gallon of water?

The total number of cups in half-gallon of water are 8 cups.

Step-by-step explanation:

80/5=16 cups=1 gallon

16/2=8 cups=1/2 gallon

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

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