Question

sara has a recipe for a cake that her mother gave her. the recipe calls for 3/4 cups of sugar for each cake. sara and her friend cindy are making 3 cakes instead of one. sara is telling cindy that they will need 9 cups of sugar. explain in words on your paper why sara is right or wrong using a convincing argument. to make 3 cakes how much sugar will they need?

Answer 1

Sarah is wrong because 3/4 x 3=9/4 or 2 1/4

Answer 2

Sara is wrong because making 3 cakes instead of 1 would require 2 1/4 cups of sugar. The original 3/4 cups of sugar would be multiplied by 3 (3/1 x 3/4) which would be 9/4, or 2 1/4, cups.