| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.49 |
| Score | 0% | 70% |
4! = ?
4 x 3 x 2 x 1 |
|
3 x 2 x 1 |
|
4 x 3 |
|
5 x 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.
Frank loaned Bob $1,500 at an annual interest rate of 7%. If no payments are made, what is the interest owed on this loan at the end of the first year?
| $36 | |
| $105 | |
| $24 | |
| $10 |
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 $1,500
i = 0.07 x $1,500
i = $105
What is the distance in miles of a trip that takes 1 hour at an average speed of 40 miles per hour?
| 45 miles | |
| 40 miles | |
| 100 miles | |
| 60 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 = \( 40mph \times 1h \)
40 miles
The __________ is the smallest positive integer that is a multiple of two or more integers.
greatest common factor |
|
least common factor |
|
least common multiple |
|
absolute value |
The least common multiple (LCM) is the smallest positive integer that is a multiple of two or more integers.
Solve 2 + (4 + 3) ÷ 2 x 5 - 32
| 4 | |
| 1 | |
| 10\(\frac{1}{2}\) | |
| 1\(\frac{2}{3}\) |
Use PEMDAS (Parentheses, Exponents, Multipy/Divide, Add/Subtract):
2 + (4 + 3) ÷ 2 x 5 - 32
P: 2 + (7) ÷ 2 x 5 - 32
E: 2 + 7 ÷ 2 x 5 - 9
MD: 2 + \( \frac{7}{2} \) x 5 - 9
MD: 2 + \( \frac{35}{2} \) - 9
AS: \( \frac{4}{2} \) + \( \frac{35}{2} \) - 9
AS: \( \frac{39}{2} \) - 9
AS: \( \frac{39 - 18}{2} \)
\( \frac{21}{2} \)
10\(\frac{1}{2}\)