Question

Plz help I need to know ,What is the difference in costs for each detergent for 28 loads of laundry?

Answer 1

You almost had it! You would divide the cost by the loads, not the other way around. You get the unit rate of Brand A to be 19¢ and B to be 16¢. You multiply both of these rates by 28 and subtract the differences. The answer is A.