Question

8th GRADE LINEAR EQUATION HELP
MEDAL+ FAN
PLZ HELP QUICK!
The owner of a bike shop sells unicycles and bicycles and keeps inventory by counting wheels and seats. One day, she counts 15 seats and 22 wheels. Which equation in slope-intercept form shows that x bicycles and y unicycles have a total of 22 wheels together?

Answer 1

I think your problem can be mathematized as follows:
if I set x=number of unicycles, and y=number of bicycles, then we can write:
\[x+y=15, x+2y=22\]

Answer 2

Um okay.. is that it? Cause that doesn't really make any sense, nor is it anything related to my homework answer choices.

Answer 3

10 bicycles and 2 unicycles !

Answer 4

@mwhit2101 I think that your answer is the second equation that I wrote above

Answer 5

Sorry solving the system that I proposed, I got:
unicycles=8, and
bicycles=7

Answer 6

Oh I see what you mean @Michele_Laino now! I just have to rewrite it in slope-intercept form for it to be one of my choices.

Answer 7

y=-2x+22

Answer 8

Thank you @Michele_Laino it was correct :D thanks so much

Answer 9

if you change x and y roles then you are right!, namely
x= numbers unicycles, and
x= numbers bicycles

Answer 10

@mwhit2101 thank you!