QUESTION: 5

The point (2, 1) is the midpoint of a line with endpoints at (5, 3) and

(3, 4)
(7, 2)
(7, 1)
(9, 1)
(10, 3)

Answer(s): D

Explanation:

The midpoint of a line is equal to the average x-coordinates and the average y-coordinates of the line's endpoints:

The other endpoint of this line is at (9, 1).

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QUESTION: 6

Lindsay grows only roses and tulips in her garden. The ratio of roses to tulips in her garden is 5:6. If there are 242 total flowers in her garden, how many of them are tulips?

22
40
110
121
132

Answer(s): E

Explanation:

The number of roses, 5x, plus the number of tulips, 6x, is equal to 242 total flowers: 5x + 6x = 242, 11x = 242, x = 22. There are 5(22) = 110 roses and 6(22) = 132 tulips in Lindsay's garden.

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QUESTION: 7

It takes eight people 12 hours to clean an office. How long would it take six people to clean the office?

9 hours
15 hours
16 hours
18 hours
24 hours

Answer(s): C

Explanation:

There is an inverse relationship between the number of people and the time needed to clean the office.
Multiply the number of people by the hours needed to clean the office: (8)(12) = 96. Divide the total number of hours by the new number of people, = 16. It takes six people 16 hours to clean the

office.

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QUESTION: 8

Greg has nine paintings. The Hickory Museum has enough space to display three of them. From how many different sets of three paintings does Greg have to choose?

27
56
84
168
504

Answer(s): C

Explanation:

Be careful not to count the same set of three paintings more than once--order is not important. A nine- choose-three combination is equal to

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