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OpenStudy (anonymous):
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
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OpenStudy (anonymous):
3X+4Y=100 X+Y=2
OpenStudy (anonymous):
X+Y=28
OpenStudy (math&ing001):
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.
OpenStudy (anonymous):
that would make it 25?
OpenStudy (anonymous):
no that would actually make it D 16 right?
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OpenStudy (anonymous):
sorry 16 yes
OpenStudy (anonymous):
awesome thanks @harpreetsk and thank you too @math&ing001
OpenStudy (math&ing001):
Actually 16 is the number of 4-wheell strollers so 12 the answer :)
OpenStudy (anonymous):
Ohhhh yeah that makes more sense because 16 is a multiple of 4 and 12 is a multiple of 3
OpenStudy (anonymous):
thanks @math&ing001
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OpenStudy (math&ing001):
Welcome
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