SOLUTION: David and Peter have a total of 140 cards. Peter and Jonathan have a total of 260 cards. Given that Jonathan has 5 times more as many cards as David, how many cards does Peter have

Question 996179: David and Peter have a total of 140 cards. Peter and Jonathan have a total of 260 cards. Given that Jonathan has 5 times more as many cards as David, how many cards does Peter have?
Found 2 solutions by CubeyThePenguin, ikleyn:
Answer by CubeyThePenguin(3113) (Show Source): You can put this solution on YOUR website!
D + P = 140
P + J = 260
J = 5D

D + P = 140
-(5D + P = 260)
-----------------
-4D = -120
D = 30

P = 140 - D = 110 cards
Answer by ikleyn(52797) (Show Source): You can put this solution on YOUR website!
.
David and Peter have a total of 140 cards. Peter and Jonathan have a total of 260 cards.
Given that Jonathan has 5 times as many cards as David, how many cards does Peter have?
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