Final answer:
To convert 4 oz per minute to gallons per hour, multiply by a conversion factor of 1 gallon/128 fluid ounces. The result is 1.875 gallons per hour.
Step-by-step explanation:
To convert 4 oz per minute to gallons per hour, we need to find the unit equivalence between ounces and gallons. Since the numerator and denominator represent equal quantities in each case, all the given conversion factors are valid. 1 gallon is equal to 128 fluid ounces. We can set up a proportion to find the number of gallons per hour:
4 oz/1 min = x gallons/1 hour
Cross multiplying, we get:
4 oz * 1 hour = x gallons * 1 min
x = (4 oz * 1 hour) / 1 min
Converting units and simplifying, we have:
x = (4/128) gallons * 60 min
x = (1/32) gallons * 60 min
x = 1.875 gallons per hour