Question

Cole earned a total of $15.40 by selling 7 cups of lemonade. How many cups of lemonade does Cole need to sell in all to earn $30.80? Solve by using rates.

Answer 1

14

Explanation:

money: cups sold

15.4 : 7

30.8 : x

30.8 / *2* = 15.4

so x/2=7

x=14