Question

A customer paid a total of $104.00 for 6 hamburgers. Some of the hamburgers

were with cheese and the rest were without cheese
• Each hamburger with cheese costs $18.
• Each hamburger with no cheese costs $12.
How many hamburgers with cheese and hamburgers with no cheese did the
customer purchase?

Answer 1

The customer bought 5 hamburgers with cheese and 1 hamburger without cheese.

Explanation:

Make the expression 18x + 12y = 104 and remember, there are 6 total hamburgers. Break down the equation one by one.

6 hamburgers (all with cheese):

18 x 6 = 108, which is over 104 (the total).

6 hamburgers (5 with cheese and 1 without):

18 x 5 = 90

12 x 1 = 12

90 + 12 = 102, which is the closest number that's less than 104 (the actual price).