SOLUTION: You want to buy either a paperback or a hardcover book as a gift for five friends. Paperback cost 6.95 each and hard covered books cost 24.99 each. Write and simplify an expression

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Question 892030: You want to buy either a paperback or a hardcover book as a gift for five friends. Paperback cost 6.95 each and hard covered books cost 24.99 each. Write and simplify an expression for the total amount you spend if x of the books are paperback, Evaluate the expression if three of your friends get a paperback.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +C+ = the cost of gifts for 5 friends
+x+ = number of paperback books
+5+-+x+ = number of hardcover books
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+C+=+6.95x+%2B+24.99%2A%28+5+-+x+%29+
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If +x+=+3+
+C+=+6.95%2A3+%2B+24.99%2A%28+5+-+3+%29+
+C+=+20.85+%2B+24.99%2A2+
+C+=+20.85+%2B+49.98+
+C+=+70.83+
The cost of the 5 gifts is $70.83