Front

In a recent survey of two popular best-selling books, two-fifths of the 2,200 polled said they did not enjoy the second book, but did enjoy the first book. Of those, 40% were adults over 18. If three-eighths of those surveyed were adults over 18, how many adults over 18 did NOT report that they enjoyed the first book but not the second book?

Back

473

Front

The diameter of a circle is increased by 80%. By what percent is the area increased?

Back

224%

Front

For triangle ABC shown below, what is its area rounded to the nearest tenth?

Back

49.2

Front

A passenger ship left Southampton, England for the Moroccan coast. The ship travelled the first 230 miles at an average speed of 20 knots, then increased its speed for the next 345 miles to 30 knots. It travelled the remaining 598 miles at an average speed of 40 knots. What was the ship’s approximate average speed in miles per hour? (1 knot = 1.15 miles per hour)

Back

36

Front

The initial number of elements in Set A is x, where x > 0. If the number of elements in Set A doubles every hour, which of the following represents the increase in the number of elements in Set A after exactly one day?

Back

(2^24)x - x

Front

At a certain lab, the current ratio of scientists to engineers is 5:1. The lab is considering a plan where 75 new team members would be hired in the ratio of two engineers per scientist, which would change the ratio of scientists to engineers to approximately 2:3. Approximately how many scientists currently work at the lab?

Back

10

Front

On a number line with points LMNOP, the ratio of LM to MN is 1, and the ratio of NO to OP is 3/4. If the length of LP is 28 and the length of MO is 13, what is the ratio of LO to MP?

Back

20/21

Front

In the xy-coordinate plane, a circle with center (−4,0)(−4,0) is tangent to the line y=−x. What is the circumference of the circle?

Back

4π√2

Front

Consider two parallel lines F and G shown below. Line F forms an angle of 60° with the x-axis. Line G has a y-intercept of −3. What is the shortest distance between the two parallel lines?

Back

3/2

Front

What is the minimum angle, Θ, that the door must be opened to allow a cylindrical drum with a diameter of 57 cm and a door with a length of 81 cm to pass through an opening that is 81 cm across?

Back

45