Translate to a proportion and solve. 567 is 12.6% of what?
A. 16
B. 45,000
C. 0.16
D. 4500
Answer: D
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A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the percentage of bulbs that can be expected to last the period of time. Round to the nearest hundredth, if necessary.Greater than 500 hours
A. 50% B. 52% C. 80% D. 40%
Solve.An arrow is fired into the air with an initial velocity of 160 feet per second. The formula 
models the arrow's height above the ground, y, in feet, x seconds after it was shot into the air. When does the arrow reach its maximum height? What is that height?
A. 6 sec; 1200 ft B. 5 sec; 400 ft C. 5 sec; 80 ft D. 6 sec; 720 ft
Solve the problem.A ship in the Atlantic Ocean measures its position to be 30°48' north latitude. Another ship is reported to be due north of the first ship at 41°17' north latitude. Approximately how far apart are the two ships? Round to the nearest mile. Assume that the radius of the Earth is 3960 miles.
A. 75,966 mi B. 725 mi C. 1,351 mi D. 75,991 mi
Solve.Mr. Alvarez grosses $500 a week. If his take-home pay is $410.83, how much money was deducted from his gross weekly pay?
A. $90.27 B. $90.17 C. $89.27 D. $89.17