| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.55 |
| Score | 0% | 71% |
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 40% off." If Roger buys two shirts, each with a regular price of $17, how much will he pay for both shirts?
| $6.80 | |
| $18.70 | |
| $27.20 | |
| $10.20 |
By buying two shirts, Roger will save $17 x \( \frac{40}{100} \) = \( \frac{$17 x 40}{100} \) = \( \frac{$680}{100} \) = $6.80 on the second shirt.
So, his total cost will be
$17.00 + ($17.00 - $6.80)
$17.00 + $10.20
$27.20
If a car travels 225 miles in 9 hours, what is the average speed?
| 50 mph | |
| 75 mph | |
| 60 mph | |
| 25 mph |
Average speed in miles per hour is the number of miles traveled divided by the number of hours:
speed = \( \frac{\text{distance}}{\text{time}} \)What is \( \frac{1}{8} \) ÷ \( \frac{1}{6} \)?
| \(\frac{1}{9}\) | |
| \(\frac{3}{4}\) | |
| \(\frac{1}{24}\) | |
| \(\frac{3}{20}\) |
To divide fractions, invert the second fraction and then multiply:
\( \frac{1}{8} \) ÷ \( \frac{1}{6} \) = \( \frac{1}{8} \) x \( \frac{6}{1} \)
To multiply fractions, multiply the numerators together and then multiply the denominators together:
\( \frac{1}{8} \) x \( \frac{6}{1} \) = \( \frac{1 x 6}{8 x 1} \) = \( \frac{6}{8} \) = \(\frac{3}{4}\)
Which of the following is not a prime number?
9 |
|
2 |
|
5 |
|
7 |
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.
How many 8-passenger vans will it take to drive all 96 members of the football team to an away game?
| 3 vans | |
| 12 vans | |
| 5 vans | |
| 7 vans |
Calculate the number of vans needed by dividing the number of people that need transported by the capacity of one van:
vans = \( \frac{96}{8} \) = 12