Question

8 plates cost 48 dollars . how much do 20 plates cost ?

Answer 1

120 dollars

Explanation:

each plate cost 6 dollars

48/8= 6

20*6=120

Answer 2

120 dollars

Explanation:

We can write a ratio to solve

8 plates 20 plates

--------------- = ---------------

48 dollars x dollars

Using cross products

8x = 20* 48

8x =960

Divide each side by 8

8x/8 = 960/8

x =120