Question

Sharon is baking a cake for her friend's birthday. She always uses 4 cups of white chocolate chips for every 5 cups of cookie crumbs. Which of the following quantities can Sharon use if she wants to get her recipe exactly right?

1) 10 cups of white chocolate chips and 12.5 cups of cookie crumbs
2) 8 cups of white chocolate chips and 10 cups of cookie crumbs
3) 6 cups of white chocolate chips and 7.5 cups of cookie crumbs
4) 5 cups of white chocolate chips and 6.25 cups of cookie crumbs

Answer 1

To get the recipe exactly right, Sharon needs to use 12 cups of white chocolate chips.

Step-by-step explanation:

To find the quantities that Sharon can use to get her recipe exactly right, we need to set up a proportion. The proportion is 4 cups/5 cups = x cups/15 cups, where x represents the quantity of white chocolate chips she needs.

Cross-multiplying gives us 4(15) = 5x. Simplifying, we get 60 = 5x. Dividing both sides by 5, we find that x = 12.

So, the only quantity that Sharon can use to get her recipe exactly right is 12 cups of white chocolate chips.