y = total cost
x = amount of times she takes the bus
Let's create two equations to model the data in the problem above.
y = $2.50x
y = $1x + $15
Now, let's set them equal to each other and solve for x.
$2.50x = $1x + $15
Subtract $1x from both sides.
$1.50x = $15
Divide both sides by $1.50
x = 10
She would have to ride the bus 10 times for the cost to be equal.
Answer:
10 Trips
Step-by-step explanation:
Create 2 algebraic Equations, X is the number of trips and y is the total cost. y=2.5x, and y=x+15. Set them equal to eachother and solve for X. 2.5X=X+15. Subtract X from both sides to get 1.5X=15. Divide by 1.5 to get 10. X=10, 10 Trips!