Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Pattyhas20coins,consistingofnickelsanddimes.Ifhernickelsweredimesandherdimeswerenickels,shewouldhave50centsmore.Howmuch arehercoinsworth?
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