carlos took a cab home from the airport. the total cost of the cab ride was $19.00. write a formula that helps carlos determine how much he paid per mile.
lets let P=price per mile
n=number of miles traveled
explain.

Question

carlos took a cab home from the airport. the total cost of the cab ride was $19.00. write a formula that helps carlos determine how much he paid per mile. 
lets let P=price per mile
            n=number of miles traveled  
explain.

thesmartone · Answer

pn=19
I am not sure..

swissgirl · Answer

P*n=$19.00

thesmartone · Answer

I think it is
pn=19

thesmartone · Answer

Yup @swissgirl

swissgirl · Answer

Most cabs dont charge like this though -.-

swissgirl · Answer

They charge you a starting fee and then to add to that that charge you a fee per mile

anonymous · Answer

well its a question lol idk

swissgirl · Answer

hahaha im just teasing

anonymous · Answer

oh okay i was starting to get lost like i was wondering if i did put the problem wrong

thesmartone · Answer

lol

anonymous · Answer

well i still dont know how to solve it :p

thesmartone · Answer

Well if you travel p miles then n miles is how much each mile costs.

anonymous · Answer

still lost v.v

swissgirl · Answer

ok lemme show you

swissgirl · Answer

SO basically lemme show you this with an example
So for every mile the cab drives he charges you 30 cents. Now in total you pay 19 dollars

so 0 .30*Amount of miles drive =19.00

swissgirl · Answer

so let n= the amount of miles you drove
.30*n=19

anonymous · Answer

oh so 19.00 *0.30?

swissgirl · Answer

nope nope
n refers to the amount of miles he drove

swissgirl · Answer

19 is the amount he paid for the taxi

anonymous · Answer

yeah so i either divide or mutiply by 0.30 right???

swissgirl · Answer

.30*n=19
Divide .30 from both sides
n=19/.30

swissgirl · Answer

Ok here we used that p=.30
But in your original problem we didnt specify how much p is
we just said that p represent the amount of money the cab would charge per mile
so that is why its P*n=19

anonymous · Answer

so then 19/0.30?

swissgirl · Answer

yup
But made up that p=.30
Your problem didnt specify what p is

anonymous · Answer

so its 63?

swissgirl · Answer

ya approximately 63.33
But this isnt what ur question asked for
I just gave you an example so that you can understand the concept
This aint the answer to your question

anonymous · Answer

uhhh i hate word questions my head hurts

swissgirl · Answer

Your question asked you for the formula
THATS IT
So 19=p*n

anonymous · Answer

19 * .30????

swissgirl · Answer

ahhhh its gonna be 
P*n=19
19/n=p
so the final answer is 19/n=p