| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.11 |
| Score | 0% | 62% |
If a mayor is elected with 62% of the votes cast and 73% of a town's 32,000 voters cast a vote, how many votes did the mayor receive?
| 17,286 | |
| 14,483 | |
| 13,549 | |
| 18,922 |
If 73% of the town's 32,000 voters cast ballots the number of votes cast is:
(\( \frac{73}{100} \)) x 32,000 = \( \frac{2,336,000}{100} \) = 23,360
The mayor got 62% of the votes cast which is:
(\( \frac{62}{100} \)) x 23,360 = \( \frac{1,448,320}{100} \) = 14,483 votes.
What is \( \sqrt{\frac{64}{64}} \)?
| \(\frac{7}{9}\) | |
| 1 | |
| \(\frac{5}{6}\) | |
| \(\frac{1}{3}\) |
To take the square root of a fraction, break the fraction into two separate roots then calculate the square root of the numerator and denominator separately:
\( \sqrt{\frac{64}{64}} \)
\( \frac{\sqrt{64}}{\sqrt{64}} \)
\( \frac{\sqrt{8^2}}{\sqrt{8^2}} \)
1
A machine in a factory has an error rate of 5 parts per 100. The machine normally runs 24 hours a day and produces 10 parts per hour. Yesterday the machine was shut down for 3 hours for maintenance.
How many error-free parts did the machine produce yesterday?
| 199.5 | |
| 83.3 | |
| 152 | |
| 95.6 |
The hourly error rate for this machine is the error rate in parts per 100 multiplied by the number of parts produced per hour:
\( \frac{5}{100} \) x 10 = \( \frac{5 \times 10}{100} \) = \( \frac{50}{100} \) = 0.5 errors per hour
So, in an average hour, the machine will produce 10 - 0.5 = 9.5 error free parts.
The machine ran for 24 - 3 = 21 hours yesterday so you would expect that 21 x 9.5 = 199.5 error free parts were produced yesterday.
A bread recipe calls for 3\(\frac{1}{2}\) cups of flour. If you only have 1 cup, how much more flour is needed?
| 2 cups | |
| 3\(\frac{1}{8}\) cups | |
| 1\(\frac{1}{2}\) cups | |
| 2\(\frac{1}{2}\) cups |
The amount of flour you need is (3\(\frac{1}{2}\) - 1) cups. Rewrite the quantities so they share a common denominator and subtract:
(\( \frac{28}{8} \) - \( \frac{8}{8} \)) cups
\( \frac{20}{8} \) cups
2\(\frac{1}{2}\) cups
Which of the following is not an integer?
-1 |
|
0 |
|
\({1 \over 2}\) |
|
1 |
An integer is any whole number, including zero. An integer can be either positive or negative. Examples include -77, -1, 0, 55, 119.