Answer:
Step-by-step explanation:
7x+9=2x+39
7x+9-9=2x+39-9
7x=2x+30
7x-2x=2x+30-2x
5x=30
5x/5=x
30/5=6
x=6
Let us assume that Timmy and Jared are eating 2 cupcakes combined. As it is not given if they are eating 2 each.
Time taken by Timmy and Jared to eat 2 cupcakes = 3 minutes
Time taken by both of them to eat 18 cupcakes in =
=27
Hence, Timmy and Jared can eat 18 cupcakes in 27 minutes.