| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.38 |
| Score | 0% | 68% |
Solve 3 + (5 + 2) ÷ 4 x 5 - 22
| 1\(\frac{3}{4}\) | |
| 1 | |
| \(\frac{7}{9}\) | |
| 7\(\frac{3}{4}\) |
Use PEMDAS (Parentheses, Exponents, Multipy/Divide, Add/Subtract):
3 + (5 + 2) ÷ 4 x 5 - 22
P: 3 + (7) ÷ 4 x 5 - 22
E: 3 + 7 ÷ 4 x 5 - 4
MD: 3 + \( \frac{7}{4} \) x 5 - 4
MD: 3 + \( \frac{35}{4} \) - 4
AS: \( \frac{12}{4} \) + \( \frac{35}{4} \) - 4
AS: \( \frac{47}{4} \) - 4
AS: \( \frac{47 - 16}{4} \)
\( \frac{31}{4} \)
7\(\frac{3}{4}\)
If \( \left|c + 5\right| \) - 4 = -7, which of these is a possible value for c?
| -9 | |
| 4 | |
| -5 | |
| -8 |
First, solve for \( \left|c + 5\right| \):
\( \left|c + 5\right| \) - 4 = -7
\( \left|c + 5\right| \) = -7 + 4
\( \left|c + 5\right| \) = -3
The value inside the absolute value brackets can be either positive or negative so (c + 5) must equal - 3 or --3 for \( \left|c + 5\right| \) to equal -3:
| c + 5 = -3 c = -3 - 5 c = -8 | c + 5 = 3 c = 3 - 5 c = -2 |
So, c = -2 or c = -8.
How many 16-passenger vans will it take to drive all 93 members of the football team to an away game?
| 13 vans | |
| 6 vans | |
| 3 vans | |
| 7 vans |
Calculate the number of vans needed by dividing the number of people that need transported by the capacity of one van:
vans = \( \frac{93}{16} \) = 5\(\frac{13}{16}\)
So, it will take 5 full vans and one partially full van to transport the entire team making a total of 6 vans.
9 members of a bridal party need transported to a wedding reception but there are only 3 2-passenger taxis available to take them. How many will need to find other transportation?
| 3 | |
| 6 | |
| 7 | |
| 5 |
There are 3 2-passenger taxis available so that's 3 x 2 = 6 total seats. There are 9 people needing transportation leaving 9 - 6 = 3 who will have to find other transportation.
A triathlon course includes a 500m swim, a 40.5km bike ride, and a 14.0km run. What is the total length of the race course?
| 40.8km | |
| 55km | |
| 55.5km | |
| 44.6km |
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 500 meters to kilometers, divide the distance by 1000 to get 0.5km then add the remaining distances:
total distance = swim + bike + run
total distance = 0.5km + 40.5km + 14.0km
total distance = 55km