| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.73 |
| Score | 0% | 55% |
If the ratio of home fans to visiting fans in a crowd is 3:1 and all 48,000 seats in a stadium are filled, how many home fans are in attendance?
| 41,667 | |
| 36,000 | |
| 37,600 | |
| 28,000 |
A ratio of 3:1 means that there are 3 home fans for every one visiting fan. So, of every 4 fans, 3 are home fans and \( \frac{3}{4} \) of every fan in the stadium is a home fan:
48,000 fans x \( \frac{3}{4} \) = \( \frac{144000}{4} \) = 36,000 fans.
What is \( 3 \)\( \sqrt{50} \) + \( 8 \)\( \sqrt{2} \)
| 24\( \sqrt{25} \) | |
| 11\( \sqrt{100} \) | |
| 23\( \sqrt{2} \) | |
| 24\( \sqrt{100} \) |
To add these radicals together their radicands must be the same:
3\( \sqrt{50} \) + 8\( \sqrt{2} \)
3\( \sqrt{25 \times 2} \) + 8\( \sqrt{2} \)
3\( \sqrt{5^2 \times 2} \) + 8\( \sqrt{2} \)
(3)(5)\( \sqrt{2} \) + 8\( \sqrt{2} \)
15\( \sqrt{2} \) + 8\( \sqrt{2} \)
Now that the radicands are identical, you can add them together:
15\( \sqrt{2} \) + 8\( \sqrt{2} \)If a mayor is elected with 65% of the votes cast and 52% of a town's 13,000 voters cast a vote, how many votes did the mayor receive?
| 3,988 | |
| 5,881 | |
| 4,935 | |
| 4,394 |
If 52% of the town's 13,000 voters cast ballots the number of votes cast is:
(\( \frac{52}{100} \)) x 13,000 = \( \frac{676,000}{100} \) = 6,760
The mayor got 65% of the votes cast which is:
(\( \frac{65}{100} \)) x 6,760 = \( \frac{439,400}{100} \) = 4,394 votes.
Which of the following is not an integer?
-1 |
|
0 |
|
1 |
|
\({1 \over 2}\) |
An integer is any whole number, including zero. An integer can be either positive or negative. Examples include -77, -1, 0, 55, 119.
Diane scored 95% on her final exam. If each question was worth 3 points and there were 120 possible points on the exam, how many questions did Diane answer correctly?
| 35 | |
| 24 | |
| 38 | |
| 52 |
Diane scored 95% on the test meaning she earned 95% of the possible points on the test. There were 120 possible points on the test so she earned 120 x 0.95 = 114 points. Each question is worth 3 points so she got \( \frac{114}{3} \) = 38 questions right.