| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.49 |
| Score | 0% | 70% |
Roger loaned Alex $900 at an annual interest rate of 1%. If no payments are made, what is the interest owed on this loan at the end of the first year?
| $9 | |
| $27 | |
| $8 | |
| $30 |
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 $900
i = 0.01 x $900
i = $9
Which of the following is not a prime number?
7 |
|
2 |
|
9 |
|
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.
Convert 6,502,000 to scientific notation.
| 6.502 x 10-5 | |
| 65.02 x 105 | |
| 6.502 x 106 | |
| 6.502 x 105 |
A number in scientific notation has the format 0.000 x 10exponent. To convert to scientific notation, move the decimal point to the right or the left until the number is a decimal between 1 and 10. The exponent of the 10 is the number of places you moved the decimal point and is positive if you moved the decimal point to the left and negative if you moved it to the right:
6,502,000 in scientific notation is 6.502 x 106
Which of the following is not an integer?
1 |
|
\({1 \over 2}\) |
|
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.
What is \( \frac{3}{9} \) x \( \frac{4}{6} \)?
| \(\frac{1}{12}\) | |
| \(\frac{2}{9}\) | |
| 2 | |
| \(\frac{1}{18}\) |
To multiply fractions, multiply the numerators together and then multiply the denominators together:
\( \frac{3}{9} \) x \( \frac{4}{6} \) = \( \frac{3 x 4}{9 x 6} \) = \( \frac{12}{54} \) = \(\frac{2}{9}\)