SOLUTION: Karen has 40 baseball cards. She buys two more packs of 8 cards each. If Karen wants to put the cards in stacks of 9 cards each, which is the number of cards that she needs to co

Algebra ->  Equations -> SOLUTION: Karen has 40 baseball cards. She buys two more packs of 8 cards each. If Karen wants to put the cards in stacks of 9 cards each, which is the number of cards that she needs to co      Log On


   



Question 1059600: Karen has 40 baseball cards. She buys two more packs of 8 cards each. If Karen wants to put the cards in stacks of 9 cards each, which is the number of cards that she needs to complete the last stack?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
So far, she has +40+%2B+2%2A8+=+40+%2B+16%0D%0A%7B%7B%7B+40+%2B+16+=+56+
+56%2F9+=+6+%2B+2%2F9+
You need +6+%2B+9%2F9+=+7+ for stacks of 9 cards each
-----------------------------------------
+9%2F9+-+2%2F9+=+7%2F9+ so you need +7+
more cards
--------------------
check:
+56+%2B+7+=+63+
+63%2F9+=+7+ stacks of 9 each