| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.60 |
| Score | 0% | 72% |
How many 11-passenger vans will it take to drive all 50 members of the football team to an away game?
| 3 vans | |
| 6 vans | |
| 5 vans | |
| 11 vans |
Calculate the number of vans needed by dividing the number of people that need transported by the capacity of one van:
vans = \( \frac{50}{11} \) = 4\(\frac{6}{11}\)
So, it will take 4 full vans and one partially full van to transport the entire team making a total of 5 vans.
What is \( 3 \)\( \sqrt{175} \) - \( 4 \)\( \sqrt{7} \)
| 11\( \sqrt{7} \) | |
| 12\( \sqrt{175} \) | |
| -1\( \sqrt{175} \) | |
| -1\( \sqrt{1225} \) |
To subtract these radicals together their radicands must be the same:
3\( \sqrt{175} \) - 4\( \sqrt{7} \)
3\( \sqrt{25 \times 7} \) - 4\( \sqrt{7} \)
3\( \sqrt{5^2 \times 7} \) - 4\( \sqrt{7} \)
(3)(5)\( \sqrt{7} \) - 4\( \sqrt{7} \)
15\( \sqrt{7} \) - 4\( \sqrt{7} \)
Now that the radicands are identical, you can subtract them:
15\( \sqrt{7} \) - 4\( \sqrt{7} \)How many hours does it take a car to travel 150 miles at an average speed of 50 miles per hour?
| 6 hours | |
| 2 hours | |
| 1 hour | |
| 3 hours |
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 time:
time = \( \frac{\text{distance}}{\text{speed}} \)
time = \( \frac{150mi}{50mph} \)
3 hours
Bob loaned Latoya $600 at an annual interest rate of 9%. If no payments are made, what is the total amount owed at the end of the first year?
| $624 | |
| $654 | |
| $612 | |
| $636 |
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 $600
i = 0.09 x $600
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $600 + $544! = ?
5 x 4 x 3 x 2 x 1 |
|
4 x 3 |
|
3 x 2 x 1 |
|
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.