Question

The owner of a bike shop sells unicycles and bicycles and keeps inventory by counting seats and wheels. One day, she counts 21 seats and 30 wheels. Which equation in slope-intercept form shows that x bicycles and y unicycles together have a total of 30 wheels?

Answer 1

U+2b=30

Explanation:

just did the quiz

Answer 2

U=-2b+30

u+b=21
in slope intercept form this is
u=-b+21

The same thing for wheels is
2b+u=30
or
u=-2b+30