Question

In Cranston, taxis charge $4 plus 90cents per mile for an airport pickup. How far from the airport can Ralph travel for $17.50?

Answer 1

let x = # of miles and y = total cost

if it costs $4 up front and 90 cents per mile, then the total cost y for driving x miles is

y = 0.90x + 4

Answer 2

if you know the total cost is $17.50, then y = 17.50

plug this into the equation to get

y = 0.90x + 4

17.50 = 0.90x + 4

then solve for x

Answer 3

tell me what you get

Answer 4

kk one sec

Answer 5

ok

Answer 6

x=15

Answer 7

good

Answer 8

Thank you so much :)

Answer 9

you're welcome