SOLUTION: The members of the Feather Fuzz Bird Watchers Club were going to pay $18 each to go on an outing. Shortly before leaving, 5 new members joined. With everybody going, this reduced e

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Question 329026: The members of the Feather Fuzz Bird Watchers Club were going to pay $18 each to go on an outing. Shortly before leaving, 5 new members joined. With everybody going, this reduced everybody's expense by $2.25. How many members are now in the F.F.B.W.C?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Bird Watchers Club were going to pay $18 each to go on an outing.
Shortly before leaving, 5 new members joined.
With everybody going, this reduced everybody's expense by $2.25.
How many members are now.
:
Let x = no. of members now
then
(x-5) = original no. of members
:
Final amt: 18 - 2.25 = $15.75
:
total cost remains the same therefore:
18(x-5) = 15.75x
:
18x - 90 = 15.75x
:
18x - 15.75x = 90
:
2.25x = 90
:
x = 40 members now
:
:
Check solution by finding the actual total cost
40 * 15.75 = 630
35 * 18 = 630, confirms our solution of x=40