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marusya05 [52]
3 years ago
10

When a rock sample from a rock bed was examined, it was found that 5.7 kilograms of the total mass of the sample was copper If t

his sample contains 25% of the total copper in the rock bed, how many kilograms of copper were in the rock bed?
Mathematics
1 answer:
Dmitrij [34]3 years ago
8 0

Answer:

10 kilos

Step-by-step explanation:

5.7 is mass of copper by 49%

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