Question

The total cost to develop camera pictures is proportional to the number of pictures being made. Maria paid 5.50 for 50 pics made. What number represents the constant in this proportional relationship.

Answer 1

Answer: 0.11

Explanation:

Suppose y represents the cost, x represents the number of pictures, then y=kx {positive proportional function}

when x=50, y=5.5

5.5=50k

k=5.5/50

k=55/500

k=0.11