Question

There are 40 volunteers that showed up to donate blood. Unfortunately n volunteers were unable to donate. The remaining volunteers donated 470ml blood each. Which expression represents the total amount of blood donated?

Answer 1

The total amount of blood donated by the volunteers is represented by the expression (40 - n) × 470 milliliters, where n is the number of volunteers who were unable to donate.

Step-by-step explanation:

To calculate the total amount of blood donated by the volunteers, we need to use the given information about the number of volunteers who were able to donate and the amount of blood each volunteer donated. The initial number of volunteers is 40, and if we denote n as the number of volunteers who were unable to donate, then the number of volunteers who did donate is 40 - n. Each of these volunteers donated 470ml of blood. Therefore, the expression representing the total amount of blood donated is (40 - n) × 470 milliliters.