SOLUTION: 2. A mixture contains 6 kg sand and 4 kg of cement. How much cement must be added to kema a mixture that is 70% cement?
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Question 974961: 2. A mixture contains 6 kg sand and 4 kg of cement. How much cement must be added to kema a mixture that is 70% cement?
Answer by harpazo(655) (Show Source): You can put this solution on YOUR website!
Here is your equation:
6x + 4x = 2x(0.70)
You do the math.
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