Question

A restaurant offers delivery for their pizzas the total coast is a delivery fee added to the price of the pizzas one customer pays $25 to have 2 pizzas delivered another customer pays $58 for 5 pizzas how many pizzas are delivered to a customer who pays $80 what is the aswer to this peoblem what is the slope

Answer 1

7 pizzas

Explanation:

Say: c= cost of pizza, d= delivery fee, p= # of pizzas (final equation)

System: 2c+d=25, 5c+d=58

2c+d=25

-5c-d=-58

-3c=-33

c=11

2(11)+d=25

d=3

p(11)+3=80

p(11)=77

p=7