Question

a recipe calls for 3.5 cups of flour and 3/4 cup of sugar. If you want to make the recipe with 6 cups of flour, about how much sugar will you need.

Answer 1

9/7 cups of sugar

Explanation:

We need to set up a proportion. F=flour S=Sugar

So,

F S

3.5 is 3/4

then,

F S

6 is ?

So we need to do

6*3/4/3.5

6*3/4

=18/4

`(18)/(4)`*
`(10)/(35)` 3.5=10/35 and for division we need to use the reciprocal

=answer is 9/7