Question

Christine buys 7 hamburgers and 3 sodas for $27.95. Laura buys 5 hamburgers and 4 sodas for $23.40. How much does a hamburger cost?

Answer 1

A hambuger costs $3.2

Explanation:

Christine buys 7 hamburgers and 3 sodas = $27.95

- The cost of hamburgers and sodas are - $3.2× 7 + $1.85 × 3 = $27.95

Laura buys 5 hambugers and 4 sodas = $23.4

- The cost of hamburgers and sodas are - $3.2 × 5 + $1.85 × 4 = $23.4