SOLUTION: Alison's school had a car wash as a fundraiser. They charged $4's for cars and $7's for trucks. After washing a total of 31 vehicles they had $140. Alison thinks someone was ste
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Question 878143: Alison's school had a car wash as a fundraiser. They charged $4's for cars and $7's for trucks. After washing a total of 31 vehicles they had $140. Alison thinks someone was stealing money---do the numbers support her claim.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
If all the vehicles were cars, the amount
would be
If one of the vehicles was a truck,
If 2 were trucks,
If 3 were trucks
If 4 were trucks
If 5 were trucks
If 6 were trucks
If If 7 were trucks
---------------------
Someone had to have either added some money
or taken some money for the total to be $140
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