8. Express 7/4 as a percent:
9. What is the cube root of 125?
10. (x5)3 =
A: x8 B: x2 C: x53 D: x15
1. C. Subtract 17 from both sides of the equation.
2. A. Divide one by six, then multiply by a hundred.
3. D. Set 2 ¾ up as an improper fraction (11/4), and then cross multiply.
4. B. Cross multiply, then divide both sides by 60, simplify the fraction, and convert the improper fraction to a mixed number.
5. A. Remember that in a multiplication problem involving decimals the number of places to the right of the decimal point will be the sum of the places to the right of the decimal point in all the terms.
6. D. Remember the order of operations: inside the parentheses, then exponents, then multiplication.
7. B. The fraction on the left side of the equation is equivalent to one, so the value of
x is simply 3/9, or 1/3.
8. D. Divide seven by four, and then multiply by a hundred.
9. C. A trial-and-error method may be most appropriate for solving this problem.
10. D. Exponents that are combined in this way should be multiplied.
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