| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.52 |
| Score | 0% | 70% |
Solve 2 + (3 + 4) ÷ 5 x 5 - 22
| \(\frac{2}{3}\) | |
| \(\frac{4}{5}\) | |
| 5 | |
| 1\(\frac{1}{4}\) |
Use PEMDAS (Parentheses, Exponents, Multipy/Divide, Add/Subtract):
2 + (3 + 4) ÷ 5 x 5 - 22
P: 2 + (7) ÷ 5 x 5 - 22
E: 2 + 7 ÷ 5 x 5 - 4
MD: 2 + \( \frac{7}{5} \) x 5 - 4
MD: 2 + \( \frac{35}{5} \) - 4
AS: \( \frac{10}{5} \) + \( \frac{35}{5} \) - 4
AS: \( \frac{45}{5} \) - 4
AS: \( \frac{45 - 20}{5} \)
\( \frac{25}{5} \)
5
Which of the following is not an integer?
\({1 \over 2}\) |
|
-1 |
|
0 |
|
1 |
An integer is any whole number, including zero. An integer can be either positive or negative. Examples include -77, -1, 0, 55, 119.
4! = ?
3 x 2 x 1 |
|
5 x 4 x 3 x 2 x 1 |
|
4 x 3 |
|
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.
What is the distance in miles of a trip that takes 3 hours at an average speed of 35 miles per hour?
| 105 miles | |
| 25 miles | |
| 135 miles | |
| 200 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 = \( 35mph \times 3h \)
105 miles
How many 1 gallon cans worth of fuel would you need to pour into an empty 6 gallon tank to fill it exactly halfway?
| 9 | |
| 3 | |
| 6 | |
| 3 |
To fill a 6 gallon tank exactly halfway you'll need 3 gallons of fuel. Each fuel can holds 1 gallons so:
cans = \( \frac{3 \text{ gallons}}{1 \text{ gallons}} \) = 3