SOLUTION: Martin’s Hardware is clearing out their inventory of bicycles and tricycles. The clerk rolls all of the bicycles and tricycles outside and arranges them in a line on the sidewalk.
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Question 765366: Martin’s Hardware is clearing out their inventory of bicycles and tricycles. The clerk rolls all of the bicycles and tricycles outside and arranges them in a line on the sidewalk. If the total number of bicycles and tricycles is 37 and the total number of wheels on all the bicycles and tricycles combined is 90, how many tricycles are in the line on the sidewalk? Answer by Cromlix(4381) (Show Source):
You can put this solution on YOUR website! Bicycles = x
Tricycles = y
x + y = 37....1
2x + 3y = 90...2
Multiply (1) by 3
3x + 3y = 111...3
2x + 3y = 90....2
Subtract (2) from (3)
x = 21
Substitute x = 21 in (1)
x + y = 37
21 + y = 37
y + 37 - 21
y = 16
So, there are 21 bicycles and
16 tricycles.
Hope this helps.
:-)
