Question

The taxi fare in a city is $3 and then $0.40 for every kilometre travelled.

A taxi fare is $9.

How far has the taxi travelled?

(I have the answer but dont know how to work it out)

Answer 1

ok
first you need to site up the Q mathematically
3+0.4*D where D is the distance travelled [ km]

Answer 2

D=x, since x more common
3+0.4x=9
solving for x
0.4x=9-3
x=6/.4=15 km

Answer 3

I hope that makes it clear for you.

Answer 4

why do we equate 3+0.4x = 9?

Answer 5

okay.... the fare is 3$ up front..... it has nothing to do with distance

Answer 6

and 0.4 is the rate per km ...

Answer 7

so adding these together should give the total charge

Answer 8

ohh okay