Question

ernesto baked 3 cakes in 2 1/2 hours. Assume that the number of cakes baked varies directly with the number of hours. Write and solve a direct variation equation to find how many cakes can he back in 7 1/2 hours?

Answer 1

3 cakes in 2.5 hours

Divide 7.5 (hours you are solving for) by 2.5 (known hours for 3 cakes)

7.5/2.5=3

Multiply that answer, 3 * 3= approximately 9 cakes in 7.5 hours