Answer:
There are 2 bicycles and 3 tricycles.
Step-by-step explanation:
Set up 2 equations, let x be the number of bicycles and y be the number of tricycles.
There are total of 7 cycles in the shop:
x + y = 7
There is a total of 19 wheels in the shop:
2x + 3y = 19
We can now solve for a system of equations:
x + y = 7
2x+ 3y = 19
I just chose to solve for y first:
x = -y+7
2(-y+7) + 3y = 19
-2y + 14 + 3y = 19
y = 5
Go back and plug y into any equation:
x + 5 = 7
x = 2
Therefore, there are two bicycles and three tricycles
