Question

Lucas had 2.3 pounds of grapes left over from his class party. The class ate 1.9 pounds of the grapes. How many pounds of grapes did Lucas buy?

Answer 1

Lucas had bought `4.2` pounds of grapes.

Explanation:

The quantity of grapes (`x`) bought by Lucas is the sum of the grapes left over from the party and the grapes eaten at the party. Hence:

`x=2.3+1.9`

`x=4.2`