CPM Homework Banner
9-40.

Victoria is playing with her balance scale and balances 3 blue blocks and 2 red blocks on one side with 5 blue blocks and a red block on the other. Later, her brother balances 2 red blocks and a blue block with a 40-gram weight. How much does each block weigh? Homework Help ✎

Write two equations from the given information.
Then solve for the weight of one blue block.
Substitute that information into one of your equations to solve for the weight of one red block.