Solve the problem. Round to an appropriate number of significant digits.A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 6% cement should he mix with 8 bags of 16.5% cement to produce a mix containing 12% cement?

A. 14 bags
B. 8 bags
C. 6 bags
D. 19 bags


Answer: C

Mathematics

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Solve the problem.A person with no more than $1000 to invest plans to place the money in two investments, telecommunications and pharmaceuticals. The telecommunications investment is to be no more than 3 times the pharmaceuticals investment. Write a system of inequalities to describe the situation. Let  to be invested in telecommunications and  to be invested in pharmaceuticals.

A. x + y = 1000 x ? 3y x ? 0 y ? 0 B. x + y = 1000 y ? 3x x ? 0 y ? 0 C. x + y ? 1000 x ? 3y x ? 0 y ? 0 D. x + y ? 1000 3x ? y x ? 0 y ? 0

Mathematics

Write the equation in standard form of the line satisfying the given conditions.Through (3, -8); undefined slope

A. y = -8 B. y = 3 C. x = -8 D. x = 3

Mathematics

Translate to an equation and solve. When necessary, round to the nearest hundredth.32% of 1700 is what?

A. 54.4  B. 5440  C. 544  D. 54,400 

Mathematics

Use any method to factor:



Mathematics