In a shop, there are 25 bicycles and tricycles. there are 63 wheels in all.find the numbers of bicycles and tricycles in the sho
p.
1 answer:
<span>let x be number of bicycles
and y the number of</span> tricycles<span>
So
x + y = 25 equation 1
The number of wheels is
2x + 3y = 63 equation 2
</span>We can multiply the equation 1 by two and subtract from the second one...
2x + 3y = 63
-(2x + 2y = 50)
then
y = 13 trikes and
x = 12 bikes
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