Question

At a cat show, there are 20 vehicles on display. Some are cars and some are motorcycles. All 56 wheels on the vehicles need to be polished. What fraction of the vehicles are motorcycles.

Answer 1

8/18

Explanation:

motorcycle has 2 wheels and car has 4

make a system of equations

m=motorcycle

c=cars

2m+4c=56

c=m+2

2m+4(m+2)=56

2m+4m+8=56

6m=48

m=8

8 motorcycles, substitute 8 for m in c=m+2 so 10 cars

18 vehicles total

8/18 is motorcycle