A Commonly Used Artificial Hip Joint Replacement Consists of a Cobalt-Chrome

question 26

Multiple Choice

A commonly used artificial hip joint replacement consists of a cobalt-chrome alloy combination. The cobalt-chrome replacement consists of 34 $\%$ cobalt and 19 $\%$ chrome with the balance made up of a mix of other metals. If the hip joint replacement weighs 18 ounces, how many ounces of cobalt and chrome are in the replacement? Round Your answer to the nearest tenth.

• A) 5.1 ounces cobalt; 2.8 ounces chrome
• B) 4.8 ounces cobalt; 2.7 ounces chrome
• C) 6.1 ounces cobalt; 3.4 ounces chrome
• D) 4.4 ounces cobalt; 2.5 ounces chrome
• E) 4.1 ounces cobalt; 2.3 ounces chrome

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