Solve.To trim the edges of a rectangular table cloth, 30 feet of lace are needed. The length of the table cloth is exactly one-half its width. What are the dimensions of the table cloth?
A. length: 10 feet; width: 20 feet
B. length: 10 feet; width: 5 feet
C. length: 2
feet; width: 5 feet
D. length: 5 feet; width: 10 feet
Answer: D
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Find the indicated sum. Find the sum of the first 7 terms in the geometric series 3 + 9 + 27 + . . .
A. 3279 B. 1092 C. 9840 D. 1122
Determine whether or not one or more pairs of twin primes exist between the pair of numbers given. If so, identify the twin primes.15 and 28
A. 21, 23 B. No C. 17, 19 and 21, 23 D. 17, 19
Solve the problems.Video games made up 47.8% of the total revenue for a small specialty store. Write this percent as a decimal.
A. 47.8 B. 0.0478 C. 4.78 D. 0.478
Use sets to solve the problem.A local television station sent out questionnaires to determine if viewers would rather see a documentary, an interview show, or reruns of a game show. There were 650 responses with the following results:195 were interested in an interview show and a documentary, but not reruns.26 were interested in an interview show and reruns but not a documentary.91 were interested in reruns but not an interview show.156 were interested in an interview show but not a documentary.65 were interested in a documentary and reruns.39 were interested in an interview show and reruns.52 were interested in none of the three.How many are interested in exactly one kind of show?
A. 302 B. 292 C. 322 D. 312