| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.33 |
| Score | 0% | 67% |
The __________ is the greatest factor that divides two integers.
greatest common multiple |
|
absolute value |
|
greatest common factor |
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least common multiple |
The greatest common factor (GCF) is the greatest factor that divides two integers.
What is \( \frac{2}{5} \) x \( \frac{4}{9} \)?
| \(\frac{8}{45}\) | |
| \(\frac{8}{9}\) | |
| \(\frac{1}{14}\) | |
| \(\frac{1}{15}\) |
To multiply fractions, multiply the numerators together and then multiply the denominators together:
\( \frac{2}{5} \) x \( \frac{4}{9} \) = \( \frac{2 x 4}{5 x 9} \) = \( \frac{8}{45} \) = \(\frac{8}{45}\)
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 50% off." If Bob buys two shirts, each with a regular price of $18, how much will he pay for both shirts?
| $27.00 | |
| $22.50 | |
| $23.40 | |
| $9.00 |
By buying two shirts, Bob will save $18 x \( \frac{50}{100} \) = \( \frac{$18 x 50}{100} \) = \( \frac{$900}{100} \) = $9.00 on the second shirt.
So, his total cost will be
$18.00 + ($18.00 - $9.00)
$18.00 + $9.00
$27.00
4! = ?
3 x 2 x 1 |
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4 x 3 |
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5 x 4 x 3 x 2 x 1 |
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4 x 3 x 2 x 1 |
A factorial has the form n! and is the product of the integer (n) and all the positive integers below it. For example, 5! = 5 x 4 x 3 x 2 x 1 = 120.
If a mayor is elected with 59% of the votes cast and 49% of a town's 40,000 voters cast a vote, how many votes did the mayor receive?
| 9,996 | |
| 11,564 | |
| 11,368 | |
| 11,760 |
If 49% of the town's 40,000 voters cast ballots the number of votes cast is:
(\( \frac{49}{100} \)) x 40,000 = \( \frac{1,960,000}{100} \) = 19,600
The mayor got 59% of the votes cast which is:
(\( \frac{59}{100} \)) x 19,600 = \( \frac{1,156,400}{100} \) = 11,564 votes.