### Home > CCA > Chapter 6 > Lesson 6.1.2 > Problem6-19

6-19.

Lisa is weighing combinations of children’s blocks. Four blue blocks and five red blocks weigh $32$ ounces. One blue block and eight red blocks weigh $35$ ounces. What is the combined weight of one red block and one blue block?

Write two equations using the variable $x$ for the weight of the blue blocks in ounces and the variable $y$ for the weight of the red blocks in ounces.

Solve the system of equations. Don't forget to answer the original question.

$7$ ounces