Jeremy bought 9 water bottles with a $20 dollar bill. Each water bottle cost $2. How much change should Jeremy receive?

Question

 Write an equation to match the problem. Use the letter c to stand for the missing number.

Answer 1

let

the amount of change  is  x

 

cost of 9 bottle is 9*2=18

 

So  18+x = 20

 

      -18       -18

-------------------------

         x= 2

 

Jeremy will receive  $2