The expression 0.15b + 5 models the total cost to hit b baseballs in the batting cages. What is the cost per baseball?

Question

its a word problem i cannot figure out 

Answer 1

The equation gives you the total cost of the batting cage. With b = baseballs.

 

T(b) = .15b + 5

 

Looking at the equation you see two parts ( .15b and 5 )that contribute to the total cost. 

 

The 5 is just a constant number so it can't help us. 

 

The .15b is our answer. b is he symbol for baseballs. So .15 per baseball. Since this is about cost it will be $0.15 per baseball