Question

A cookie recipe for 5 dozen cookies calls for 4 cups of flour. How many is flour is needed to make 90 cookies

Answer 1

`\rm \hookrightarrow \: 5 \: dozen \: cookies = 12×5 = 60 Cookies`

60 cookies need 4 cup of flour

`\rm\hookrightarrow1 \: cookie \: need (4)/(60) cup \: of \: four`

`\rm \hookrightarrow90 \: cookies \: need (4)/(60) * 90 \: cu p \: of \: flour`

`\rm \hookrightarrow = (4)/(2) * 3`

`\rm \hookrightarrow = 2 * 3 = 6 \: cups \: of \: flour`

Answer 2

6cups of flour will be needed
5*12/4= 15
90/15=6