Question

Write an expression for the following real-world situation. Katie is moving to a new house. Small boxes hold 15 pounds each and medium boxes hold 25 pounds each. Write an expression for the total weight in the moving van if Katie uses "s" small boxes and "m" medium boxes.

Answer 1

Small boxes hold 15 pounds, she uses "s" small boxes, this means that the total weight of the small boxes is 15*s=15s, the same goes for medium boxes; the number of pounds the box holds times the number of boxes; 25*m=25m, the sum of these two is 15s+25m