Question

A recipe that serves four calls for 2.25 cups of butter. How many cups of butter is needed to serve ten? *

Answer 1

4------------------------->2.25cups

10------------------------>x cups

Using cross multiplication:

`\begin{gathered} (4)/(10)=(2.25)/(x) \\ \text{solve for x:} \\ x=(10*2.25)/(4) \\ x=5.625 \end{gathered}`

Answer:

5.625 cups