SOLUTION: A civic club charters a bus for one day at a cost of $575. When two more people join the group, each person's cost decreases by $2. How many people were in the original group?
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Question 944261: A civic club charters a bus for one day at a cost of $575. When two more people join the group, each person's cost decreases by $2. How many people were in the original group?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the original number of people
in the group
= The number when 2 people
join the group
---------------
= original cost/person
given:
Multiply both sides by
Use the quadratic formula
23 people were in the original group
check:
OK
---------------------
Normally would be a whole number, so
I don't know what happened. I think my equation
is OK, so check my math
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