Question

Nathan buys coffee and hot chocolate for his co-workers. Each cup of coffee costs $1.55 and each cup of hot chocolate costs $1.00. If he pays a total of $11.30 for 8 cups, how many of each does he buy?

Nathan buys
cups of coffee and
cups of hot chocolate.

Answer 1

• 6 cups of coffee
• 2 cups of hot chocolate

Explanation:

Let x represent the number of cups of coffee. The total outlay was ...

1.55x + 1.00(8 -x) = 11.30

0.55x = 11.30 -8.00 . . . . . . simplify, subtract 8

x = 3.30/0.55 = 6 . . . . . . . divide by the coefficient of x

Nathan buys 6 cups of coffee and 2 cups of hot chocolate.