300
Mrs. Fisher and her class spent 3 1/2 hours solving equations at school Friday. During the following week, her students spent an additional 2 1/4 times as many hours solving more equations to become Equation Solving Masters ! Find the full number of hours spent solving equations.
What is 7 7/8 hours ?
Solution:
Multiply 3 1/2 x 2 1/4
7/2 x 9/4 = 63/ 8 = 7 7/8 hours