Saturday, January 9, 2010

Slow cab taxi charges $1.75 flat rate in addition to $0.65 per mile. Sheena has no more than $10 to spend on a ride. Write a linear equation to...

Hello!


Denote the number of miles ridden as `x.` Then $0.65 per mile means that the price will be `0.65*x` for a mileage and the total price including flat rate will be


`0.65*x+1.75.`


If Sheena want to spend all her $10, we obtain a linear equation


`0.65*x+1.75=10.`


This is the answer.



It is simple to solve it: subtract 1.75 from the both sides and obtain


`0.65*x=10-1.75=8.25,`


then divide both sides by 0.65 and obtain the solution


`x=8.25/0.65 approx 12.7` (miles).



Actually, the text of the problem gives us a linear inequality,


`0.65*x+1.75lt=10,`


because "Sheena has no more than $10 to spend on a ride."


The solution for this inequality is `xlt=12.7.`

1 comment:

  1. Flat Rate Taxi is the best way to travel within a city and its surrounding areas. I always use flat rate taxi as it has many benefits over others.

    ReplyDelete