SOLUTION: Complete. Seafloor rocks from a secret area above the Artic Circle were recently analyzed by Z-Globe. The company had a contract with Spacegov.biz tot est the rocks for nickel.

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Question 150384: Complete.
Seafloor rocks from a secret area above the Artic Circle were recently analyzed by Z-Globe. The company had a contract with Spacegov.biz tot est the rocks for nickel. Z-Globe found that six samples from the first location were composed of an average of 8.16% nickel. Ten samples from the second location yielded an average of 6.76% nickel. What was the overall average nickel content of the rock samples? Round your answer to the nearest hundredth. (Remember it is not the average of the two averages.)
Answer by ankor@dixie-net.com(15746) About Me  (Show Source):
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Z-Globe found that six samples from the first location were composed of an average of 8.16% nickel. Ten samples from the second location yielded an average of 6.76% nickel. What was the overall average nickel content of the rock samples? Round your answer to the nearest hundredth.
:
Av = %286%288.16%29+%2B+10%286.76%29%29%2F16
:
Av = %2848.96+%2B+67.60%29%2F16
:
Av = 116.56%2F16
:
Av = 7.285 ~ 7.29%