A cookie recipe calls for 3/4 cup of granulated sugar and 1/2 cup of powdered sugar. If Jacob doubles the recipe, what is the total number of cups of granulated sugar and powdered sugar he will need?

Answer 1

If Jacob doubles the recipe, he will need 3/4 x 2 = <<3/4*2=1.5>>1.5 cups of granulated sugar.
He will also need 1/2 x 2 = <<1/2*2=1>>1 cup of powdered sugar.
Therefore, Jacob will need a total of 1.5 + 1 = <<1.5+1=2.5>>2.5 cups of granulated sugar and powdered sugar. Answer: \boxed{2.5}.