Math
posted by Anonymous
For a field trip, a bus company charges a flat fee plus an additional fee per student. For 25 students, the total cost is $167.50. If there are 70 students, the total cost is $370.00. Write an equation that represents the total cost y of the field trip for x students. What would the total cost be if 110 students went on the field trip?

bobpursley
cost=flat+numberkids*costperkid
370=flat+70*costperkid
167.5=flat+25*costperkid
subtract second equation from first..
370167.5=45*costperkid
solve for costper kid, then go back and solve for flat. 
Steve
Something tells me this is not the real bobpursley ...

Ms. Sue
Thanks, Steve.
Will be deleted and banned within a couple of minutes.
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