| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.53 |
| Score | 0% | 71% |
14 members of a bridal party need transported to a wedding reception but there are only 4 3-passenger taxis available to take them. How many will need to find other transportation?
| 2 | |
| 9 | |
| 6 | |
| 1 |
There are 4 3-passenger taxis available so that's 4 x 3 = 12 total seats. There are 14 people needing transportation leaving 14 - 12 = 2 who will have to find other transportation.
Which of the following is not a prime number?
7 |
|
9 |
|
2 |
|
5 |
A prime number is an integer greater than 1 that has no factors other than 1 and itself. Examples of prime numbers include 2, 3, 5, 7, and 11.
What is \( \frac{18\sqrt{21}}{6\sqrt{7}} \)?
| \(\frac{1}{3}\) \( \sqrt{3} \) | |
| 3 \( \sqrt{3} \) | |
| 3 \( \sqrt{\frac{1}{3}} \) | |
| \(\frac{1}{3}\) \( \sqrt{\frac{1}{3}} \) |
To divide terms with radicals, divide the coefficients and radicands separately:
\( \frac{18\sqrt{21}}{6\sqrt{7}} \)
\( \frac{18}{6} \) \( \sqrt{\frac{21}{7}} \)
3 \( \sqrt{3} \)
Find the average of the following numbers: 16, 10, 16, 10.
| 13 | |
| 17 | |
| 9 | |
| 12 |
To find the average of these 4 numbers add them together then divide by 4:
\( \frac{16 + 10 + 16 + 10}{4} \) = \( \frac{52}{4} \) = 13
A triathlon course includes a 200m swim, a 40.9km bike ride, and a 11.700000000000001km run. What is the total length of the race course?
| 25.3km | |
| 38.6km | |
| 52.8km | |
| 48.1km |
To add these distances, they must share the same unit so first you need to first convert the swim distance from meters (m) to kilometers (km) before adding it to the bike and run distances which are already in km. To convert 200 meters to kilometers, divide the distance by 1000 to get 0.2km then add the remaining distances:
total distance = swim + bike + run
total distance = 0.2km + 40.9km + 11.700000000000001km
total distance = 52.8km