Mathematics, 02.02.2021 03:20 princesincer9256
The density and strength of concrete are determined by the ratio of cement and aggregate (aggregate is sand, gravel, or crushed stone). Suppose that a
contractor has 560 ft of a dry concrete mixture that is 60% sand by volume. How much pure sand must be added to form a new mixture that is 80% sand by
volume?
The contractor needs
ft of pure sand to form the resulting mixture.
X
Answers: 1
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The density and strength of concrete are determined by the ratio of cement and aggregate (aggregate...
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