| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.63 |
| Score | 0% | 73% |
What is the distance in miles of a trip that takes 3 hours at an average speed of 45 miles per hour?
| 320 miles | |
| 135 miles | |
| 350 miles | |
| 195 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 = \( 45mph \times 3h \)
135 miles
On average, the center for a basketball team hits 50% of his shots while a guard on the same team hits 65% of his shots. If the guard takes 25 shots during a game, how many shots will the center have to take to score as many points as the guard assuming each shot is worth the same number of points?
| 36 | |
| 67 | |
| 57 | |
| 32 |
guard shots made = shots taken x \( \frac{\text{% made}}{100} \) = 25 x \( \frac{65}{100} \) = \( \frac{65 x 25}{100} \) = \( \frac{1625}{100} \) = 16 shots
The center makes 50% of his shots so he'll have to take:
shots made = shots taken x \( \frac{\text{% made}}{100} \)
shots taken = \( \frac{\text{shots taken}}{\frac{\text{% made}}{100}} \)
to make as many shots as the guard. Plugging in values for the center gives us:
center shots taken = \( \frac{16}{\frac{50}{100}} \) = 16 x \( \frac{100}{50} \) = \( \frac{16 x 100}{50} \) = \( \frac{1600}{50} \) = 32 shots
to make the same number of shots as the guard and thus score the same number of points.
What is (x2)3?
| x-1 | |
| x5 | |
| 3x2 | |
| x6 |
To raise a term with an exponent to another exponent, retain the base and multiply the exponents:
(x2)3Which 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.
Find the average of the following numbers: 10, 4, 10, 4.
| 12 | |
| 7 | |
| 6 | |
| 3 |
To find the average of these 4 numbers add them together then divide by 4:
\( \frac{10 + 4 + 10 + 4}{4} \) = \( \frac{28}{4} \) = 7