| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.34 |
| Score | 0% | 67% |
On average, the center for a basketball team hits 30% of his shots while a guard on the same team hits 45% of his shots. If the guard takes 30 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?
| 41 | |
| 42 | |
| 43 | |
| 28 |
guard shots made = shots taken x \( \frac{\text{% made}}{100} \) = 30 x \( \frac{45}{100} \) = \( \frac{45 x 30}{100} \) = \( \frac{1350}{100} \) = 13 shots
The center makes 30% 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 = \( \frac{13}{\frac{30}{100}} \) = 13 x \( \frac{100}{30} \) = \( \frac{13 x 100}{30} \) = \( \frac{1300}{30} \) = 43 shots
to make the same number of shots as the guard and thus score the same number of points.
What is the next number in this sequence: 1, 3, 7, 13, 21, __________ ?
| 33 | |
| 35 | |
| 22 | |
| 31 |
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
What is \( \frac{2}{7} \) ÷ \( \frac{2}{5} \)?
| \(\frac{9}{40}\) | |
| 5 | |
| \(\frac{4}{63}\) | |
| \(\frac{5}{7}\) |
To divide fractions, invert the second fraction and then multiply:
\( \frac{2}{7} \) ÷ \( \frac{2}{5} \) = \( \frac{2}{7} \) x \( \frac{5}{2} \)
To multiply fractions, multiply the numerators together and then multiply the denominators together:
\( \frac{2}{7} \) x \( \frac{5}{2} \) = \( \frac{2 x 5}{7 x 2} \) = \( \frac{10}{14} \) = \(\frac{5}{7}\)
How many 16-passenger vans will it take to drive all 51 members of the football team to an away game?
| 7 vans | |
| 5 vans | |
| 10 vans | |
| 4 vans |
Calculate the number of vans needed by dividing the number of people that need transported by the capacity of one van:
vans = \( \frac{51}{16} \) = 3\(\frac{3}{16}\)
So, it will take 3 full vans and one partially full van to transport the entire team making a total of 4 vans.
What is \( \frac{3}{8} \) x \( \frac{4}{8} \)?
| \(\frac{3}{56}\) | |
| \(\frac{2}{15}\) | |
| \(\frac{3}{16}\) | |
| 1\(\frac{1}{2}\) |
To multiply fractions, multiply the numerators together and then multiply the denominators together:
\( \frac{3}{8} \) x \( \frac{4}{8} \) = \( \frac{3 x 4}{8 x 8} \) = \( \frac{12}{64} \) = \(\frac{3}{16}\)