Answer:
Shoe rent is $4.5
Step-by-step explanation:
Let the shoe rent is "x" which will remain the same irrespective of the number of bowling and "y" is bowling.
thus, x + 2y = 16.50
Rewrite, x = 16.50 - 2y
When bowling is 4 time then:
x + 4y = 28.50
Rewrite, x = 28.50 - 4y
Now solve both equations for the value of "y".
Thus, 16.50 - 2y = 28.50-4y
-2y + 4y = 28.50 - 16.50
2y = 12
y = 6
Insert y = 6 in the x - 2y = 16.50
x = 16.50 - 2y
x = 16.50 - 2 (6)
x = $4.5
Shoe rent is $4.5
