Question

The Origami Club is doing a car wash fundraiser to raise money for a trip. They charge the same price for every car. After 11 cars, they raised a total of $93.50. After 23 cars, they raised a total of $195.50.
Write an equation that represents this situation. (Use c to represent numbers of cars and use m to represent amount raised in dollars.)

Answer 1

Answer:

Step-by-step explanation:

Let the number of car be c

Let m be the amount raised

If after 11 cars, they raised a total of $93.50, this means

at c1 = 11, m1 = $93.50

If after 23 cars, they raised a total of $195.50, this means:

at c2 = 23, m2 = $195.50

Get the proportionality constant

k = 195.50 - 93.50/23-11

k = 102/12

k = 8.5

Since m = kc

Substitute k = 8.5 into the equation:

m = 8.5c

Hence the equation that represents the equation is m = 8.5c