Question

Simon uses 0.5 pounds of sugar to make 3 dozen cookies. He can buy a 4-pound bag of sugar for $4.50. How much will he spend on sugar to make 120 dozen cookies for his business?

Answer 1

To make 3 dozen cookies, Simon uses 0.5 pounds of sugar. So, for 1 dozen cookies, he uses:

0.5 pounds / 3 dozen = 0.5/3 = 0.1667 pounds of sugar.

to make 120 dozen cookies he uses

120*0.1667=20.004 pounds of pacifier

he will have to buy 20 pounds of sugar, i.e. 5 packets of 4 pounds

cost: 5*4.5=$22.5

Explanation: