Mary buys 100 candies for $7. If yips cost 5 cents each, Gups 6 cents each and pips 7 cents each, how many more pips than yips did Mary buy? A 50 B 60 C 70 D 100 E none of the above
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Originally Posted by sri340 Mary buys 100 candies for $7. If yips cost 5 cents each, Gups 6 cents each and pips 7 cents each, how many more pips than yips did Mary buy? A 50 B 60 C 70 D 100 E none of the above Let y denote the number of yips, g the number of gups and p the number of pips. From the text of the question you know: Multiply the first equation by 6 and subtract both equations columnwise to get rid of the gups. Solve for y.
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