Solve the problem.The length of a rectangle is 20 feet. For what widths is the perimeter less than 64 feet?

A. widths less than 24 ft
B. widths less than 12 ft
C. widths less than 22 ft
D. widths less than 44 ft


Answer: B

Mathematics

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Perform the indicated operation without the use of a calculator and express each answer in decimal notation.

A. 60,000 B. 0.06 C. 0.00001667 D. 0.0006

Mathematics

Perform the indicated operation. Write the answer in scientific notation.(19.9 × 109) ÷ (5 × 10-2)

A. 3.98 × 107 B. 3.98 × 1011 C. 7.96 × 107 D. 7.96 × 1011

Mathematics

Solve the problem.Sven can type 1520 words in  hour (40 minutes). How many words per minute can he type?

A. 38 words/minute B. 1013 words/minute C. 25 words/minute D. 57 words/minute

Mathematics

Solve the linear equation with the intersection-of-graphs method. Approximate the solution to the nearest hundredth if necessary.9.9(x - 1) = x - 2.1

A. -1.28 B. 0.75 C. 0.83 D. -1.15

Mathematics