Homework Help: math

Posted by zachary stanich on Wednesday, February 1, 2012 at 10:59pm.

Bikes, Trikes and more
At Brittany's Bike shop, she rents all kinds of cycles: unicycles, tandems, regular bikes, and even tricycles. She parks all the cycles in front of her shop with a helmet for each rider strapped to the cycles. This morning Brittany counted 57 Helmets and 115 wheels. She knows she an egual number of unicycles and tandems. She also knows that she has 32 regular bikes. How many unicycles, tandems and trikes does she have?

math - Steve, Thursday, February 2, 2012 at 10:06am
If we let u=unicycles, b=bicycles, t=tandems, k=trikes,

helmets: u+b+2t+k=57
wheels: u+2b+2t+3k=115
u=t
b=32
so we are left with:

t+32+2t+k=57
t+64+2t+3k=115

3t + k = 25
3t + 3k = 51

2k = 26

k=13
t=4
u=4
b=32
math - Alyssa, Friday, March 8, 2013 at 12:35am
Idk

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