# A bus company...

• Nov 16th 2009, 06:26 PM
mathcalculushelp
A bus company...
A bus company found that at the beginning of june , it was costing \$480 to run a particular route each month but that that mothly cost was increasing at a rate of \$36 per month.Also, at that point in time , there were 940 passengers taking the route each month but that number was also increasing at a rate of 8 passengers per month each month.Given this determine the rate at which the company's per passenger cost for the route was changing as of the beginning of june.Label your results.
• Nov 16th 2009, 10:28 PM
Evales
I might be mistaken but I think this is just a matter of comparing the original cost and passenger amounts to the new cost and passenger amounts.
Original amounts being:
\$460 and 980
New amounts being:
\$460 + \$36 and 980 + 8

To compare the prices find the cost per passenger both times and take the orginal away from the new.
• Nov 18th 2009, 12:21 PM
mathcalculushelp
Original :

460/980=0.46

new:

496/988=0.50

hence, new-original=0.50-0.46=\$0.04/passenger.

Is this what we are supposed to do?Does .04 become the rate of change?