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1. |
In mathematics, a ratio is a comparison of two numbers by ______. |
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A. |
subtraction |
B. |
division |
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C. |
multiplication |
D. |
addition |
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Hint |
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2. |
Every proportion has two cross products which are always ______. |
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A. |
zero |
B. |
negative |
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C. |
positive |
D. |
equal |
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Hint |
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3. |
A doll house is modeled after a family's house. For every 12 inches in the actual house, the doll house measures 1 inch. What is the scale of the doll house to the actual house? |
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A. |
1:10 |
B. |
1:6 |
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C. |
1:12 |
D. |
1:1 |
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Hint |
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4. |
If a toy car measures 1 inch for every one-half foot of an actual car, what is the scale in inches? |
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A. |
1:12 |
B. |
1:10 |
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C. |
1:6 |
D. |
1:1 |
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Hint |
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5. |
Soundous needs a 50% saline solution. She has 60 milliliters of a 40% solution. How many milliliters of a 70% solution should she add to obtain the required 50% solution? |
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A. |
270 milliliters |
B. |
30 milliliters |
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C. |
90 milliliters |
D. |
180 milliliters |
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Hint |
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6. |
The Morrow's have dinner as Shu's Kitchen. The cost of the dinner is $25. What is the final bill if the sales tax is 4%? |
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A. |
$35 |
B. |
$24 |
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C. |
$26 |
D. |
$26.50 |
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Hint |
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7. |
On a particular January day in Fargo, North Dakota, the probability of snow for Monday is 50% and for Tuesday is 70%. Find the probability that it will snow on either Monday or Tuesday in Fargo. |
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A. |
85% |
B. |
50% |
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C. |
100% |
D. |
60% |
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Hint |
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8. |
The chart shows the amount of time Janette spends on each activity in her day. What percent of the time is Janette sleeping or socializing? Round to the nearest tenth of a percent if necessary. |
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A. |
29.2% |
B. |
8.3% |
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C. |
54.2% |
D. |
37.5% |
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Hint |
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9. |
Choose the circle graph that best represents the data. |
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A. |
 |
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B. |
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C. |
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D. |
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Hint |
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10. |
Mindy's hamster, Fluffy, just had babies. Her dad tells her she can keep 15% of the baby hamsters. If Fluffy had 20 baby hamsters, how many of them can Mindy keep? |
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A. |
133 hamsters |
B. |
15 hamsters |
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C. |
3 hamsters |
D. |
5 hamsters |
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Hint |
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11. |
Find the percent increase or decrease to the nearest percent.
original: 113
new: 150 |
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A. |
33% decrease |
B. |
33% increase |
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C. |
37% increase |
D. |
37% decrease |
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Hint |
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12. |
If an event has a 5% chance of happening, how likely is it going to happen? |
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A. |
very likely |
B. |
unlikely |
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C. |
impossible |
D. |
certain |
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Hint |
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13. |
Jamil works at Pizza Palace. When he is assembling pizzas, he sometimes gets bored and makes designs out of the toppings. This happens on two out of every 15 pizzas. If you order a pizza at Pizza Palace while Jamil is working, what is the probability that you will get one of Jamil's artistic pizzas? |
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A. |
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B. |
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C. |
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D. |
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Hint |
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14. |
If you have a bag of marbles with 3 red, 4 blue, and 2 green marbles and choose a marble from the bag, what is the probability that you choose either a green or blue marble? |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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