| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.11 |
| Score | 0% | 62% |
How many 2 gallon cans worth of fuel would you need to pour into an empty 8 gallon tank to fill it exactly halfway?
| 6 | |
| 4 | |
| 5 | |
| 2 |
To fill a 8 gallon tank exactly halfway you'll need 4 gallons of fuel. Each fuel can holds 2 gallons so:
cans = \( \frac{4 \text{ gallons}}{2 \text{ gallons}} \) = 2
A factor is a positive __________ that divides evenly into a given number.
mixed number |
|
fraction |
|
integer |
|
improper fraction |
A factor is a positive integer that divides evenly into a given number. For example, the factors of 8 are 1, 2, 4, and 8.
Solve 5 + (5 + 2) ÷ 3 x 2 - 32
| 2\(\frac{2}{3}\) | |
| \(\frac{8}{9}\) | |
| 1\(\frac{1}{2}\) | |
| \(\frac{2}{3}\) |
Use PEMDAS (Parentheses, Exponents, Multipy/Divide, Add/Subtract):
5 + (5 + 2) ÷ 3 x 2 - 32
P: 5 + (7) ÷ 3 x 2 - 32
E: 5 + 7 ÷ 3 x 2 - 9
MD: 5 + \( \frac{7}{3} \) x 2 - 9
MD: 5 + \( \frac{14}{3} \) - 9
AS: \( \frac{15}{3} \) + \( \frac{14}{3} \) - 9
AS: \( \frac{29}{3} \) - 9
AS: \( \frac{29 - 27}{3} \)
\( \frac{2}{3} \)
\(\frac{2}{3}\)
The total water usage for a city is 15,000 gallons each day. Of that total, 17% is for personal use and 50% is for industrial use. How many more gallons of water each day is consumed for industrial use over personal use?
| 4,950 | |
| 10,200 | |
| 8,100 | |
| 6,600 |
50% of the water consumption is industrial use and 17% is personal use so (50% - 17%) = 33% more water is used for industrial purposes. 15,000 gallons are consumed daily so industry consumes \( \frac{33}{100} \) x 15,000 gallons = 4,950 gallons.
A triathlon course includes a 300m swim, a 50.3km bike ride, and a 11.3km run. What is the total length of the race course?
| 31.5km | |
| 61.9km | |
| 37.5km | |
| 31.7km |
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 300 meters to kilometers, divide the distance by 1000 to get 0.3km then add the remaining distances:
total distance = swim + bike + run
total distance = 0.3km + 50.3km + 11.3km
total distance = 61.9km