SOLUTION: A preschool playground has both bicycles and trycicles there is a total of 30 seats and 70 wheels how many bicycles are there

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Question 877606: A preschool playground has both bicycles and trycicles there is a total of 30 seats and 70 wheels how many bicycles are there
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint:

If b is the number of bicycles and t is the number of tricycles, then we have this system of equations

b%2Bt=30 (each has 1 seat, so they must add to 30 total seats)
2b%2B3t=70 (2 wheels per bike + 3 wheels per tricycle = 70 wheels total)