Explanation Given: A gold merchant has some 12-= carat gold ( 12 24 pure gold) and some 22 carat gold ( 22 24 pure). Formula used: Calculation: Let x gram of 12 carat and y grams of 22 carat are required to make 25 grams of 15 carat gold, then: x + y = 25 And, x ( 0.12 ) + y ( 0.22 ) = 25 ( 0.15 ) To find the value of x put y = 25 − x in equation x ( 0.12 ) + y ( 0.22 ) = 25 ( 0.15 ) as: x ( 0

12th Edition

ISBN: 9780134776323

Author: MULLINS

Publisher: PEARSON CUSTOM PUB.(CONSIGNMENT)

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Chapter 6, Problem 80RE

To determine

To calculate: How many grams of 12 carat gold and 22 carat gold could be mixed to get 25 grams of 15 carat gold.

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Chapter 6, Problem 79RE

Chapter 6, Problem 81RE

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