Jane is organizing a fundraiser to buy a ping-pong table for the community center. the table costs $500.00. jane is asking contributors to pay for an equal share of the cost of the table. she already has five contributors lined up. what function models the cost per share, c, with respect to the number of new contributors, n? how many new contributors must jane recruit in order for the cost of each share to be $20.00?

Step-by-step explanation:

So the right hand side is 500 dollars.

Each share must be 20 dollars. that includes the amount for the 5 she already has.

C*n + 20*5 = 500                     Given equation

C is given as 20 dollars.          Given equation

20n + 20*5 = 500                     Substitute C = 20 in for C

20n + 100 = 500                       Subtract 100 from both sides

20n + 100 - 100 = 500 - 100    Combine

20n = 400                                 Divide by 20

20n/20 = 400/20                  

n = 20