| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.43 |
| Score | 0% | 69% |
If there were a total of 250 raffle tickets sold and you bought 22 tickets, what's the probability that you'll win the raffle?
| 10% | |
| 7% | |
| 18% | |
| 9% |
You have 22 out of the total of 250 raffle tickets sold so you have a (\( \frac{22}{250} \)) x 100 = \( \frac{22 \times 100}{250} \) = \( \frac{2200}{250} \) = 9% chance to win the raffle.
A factor is a positive __________ that divides evenly into a given number.
integer |
|
fraction |
|
improper fraction |
|
mixed number |
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.
What is the next number in this sequence: 1, 3, 7, 13, 21, __________ ?
| 22 | |
| 31 | |
| 35 | |
| 32 |
The equation for this sequence is:
an = an-1 + 2(n - 1)
where n is the term's order in the sequence, an is the value of the term, and an-1 is the value of the term before an. This makes the next number:
a6 = a5 + 2(6 - 1)
a6 = 21 + 2(5)
a6 = 31
Bob loaned Diane $700 at an annual interest rate of 8%. If no payments are made, what is the total amount owed at the end of the first year?
| $714 | |
| $763 | |
| $728 | |
| $756 |
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 $700
i = 0.08 x $700
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $700 + $56Simplify \( \sqrt{18} \)
| 8\( \sqrt{4} \) | |
| 2\( \sqrt{2} \) | |
| 8\( \sqrt{2} \) | |
| 3\( \sqrt{2} \) |
To simplify a radical, factor out the perfect squares:
\( \sqrt{18} \)
\( \sqrt{9 \times 2} \)
\( \sqrt{3^2 \times 2} \)
3\( \sqrt{2} \)