| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.81 |
| Score | 0% | 76% |
Which of these numbers is a factor of 72?
| 71 | |
| 25 | |
| 4 | |
| 21 |
The factors of a number are all positive integers that divide evenly into the number. The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72.
What is the distance in miles of a trip that takes 5 hours at an average speed of 15 miles per hour?
| 50 miles | |
| 560 miles | |
| 600 miles | |
| 75 miles |
Average speed in miles per hour is the number of miles traveled divided by the number of hours:
speed = \( \frac{\text{distance}}{\text{time}} \)Solving for distance:
distance = \( \text{speed} \times \text{time} \)
distance = \( 15mph \times 5h \)
75 miles
4! = ?
4 x 3 x 2 x 1 |
|
5 x 4 x 3 x 2 x 1 |
|
4 x 3 |
|
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.
Frank loaned Diane $200 at an annual interest rate of 1%. If no payments are made, what is the total amount owed at the end of the first year?
| $206 | |
| $210 | |
| $202 | |
| $208 |
The yearly interest charged on this loan is the annual interest rate multiplied by the amount borrowed:
interest = annual interest rate x loan amount
i = (\( \frac{6}{100} \)) x $200
i = 0.01 x $200
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $200 + $2What is \( \frac{3}{7} \) x \( \frac{2}{6} \)?
| \(\frac{6}{7}\) | |
| 1 | |
| \(\frac{1}{7}\) | |
| \(\frac{8}{15}\) |
To multiply fractions, multiply the numerators together and then multiply the denominators together:
\( \frac{3}{7} \) x \( \frac{2}{6} \) = \( \frac{3 x 2}{7 x 6} \) = \( \frac{6}{42} \) = \(\frac{1}{7}\)