Question

A bike shop sells rolling strollers for runners with babies, with a total of 28 in the store. Some of the strollers have 3 wheels and some have 4. If there are 100 wheels, how many 3-wheel strollers are there?
A.
25
B.
12
C.
3
D.
16
Please help

Answer 1

3X+4Y=100
X+Y=2

Answer 2

X+Y=28

Answer 3

Let x be the number of 3-wheel strollers and y the number of 4-wheel strollers
28=x+y
3x+4y=100
Solve the system for x and y.

Answer 4

that would make it 25?

Answer 5

no that would actually make it D 16 right?

Answer 6

sorry 16 yes

Answer 7

awesome thanks @harpreetsk and thank you too @math&ing001

Answer 8

Actually 16 is the number of 4-wheell strollers so 12 the answer :)

Answer 9

Ohhhh yeah that makes more sense because 16 is a multiple of 4 and 12 is a multiple of 3

Answer 10

thanks @math&ing001

Answer 11

Welcome