| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.77 |
| Score | 0% | 55% |
On average, the center for a basketball team hits 45% of his shots while a guard on the same team hits 60% 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?
| 56 | |
| 30 | |
| 33 | |
| 68 |
guard shots made = shots taken x \( \frac{\text{% made}}{100} \) = 25 x \( \frac{60}{100} \) = \( \frac{60 x 25}{100} \) = \( \frac{1500}{100} \) = 15 shots
The center makes 45% 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 = \( \frac{15}{\frac{45}{100}} \) = 15 x \( \frac{100}{45} \) = \( \frac{15 x 100}{45} \) = \( \frac{1500}{45} \) = 33 shots
to make the same number of shots as the guard and thus score the same number of points.
The __________ is the smallest positive integer that is a multiple of two or more integers.
absolute value |
|
least common factor |
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least common multiple |
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greatest common factor |
The least common multiple (LCM) is the smallest positive integer that is a multiple of two or more integers.
What is \( 9 \)\( \sqrt{175} \) + \( 7 \)\( \sqrt{7} \)
| 63\( \sqrt{25} \) | |
| 52\( \sqrt{7} \) | |
| 63\( \sqrt{1225} \) | |
| 16\( \sqrt{7} \) |
To add these radicals together their radicands must be the same:
9\( \sqrt{175} \) + 7\( \sqrt{7} \)
9\( \sqrt{25 \times 7} \) + 7\( \sqrt{7} \)
9\( \sqrt{5^2 \times 7} \) + 7\( \sqrt{7} \)
(9)(5)\( \sqrt{7} \) + 7\( \sqrt{7} \)
45\( \sqrt{7} \) + 7\( \sqrt{7} \)
Now that the radicands are identical, you can add them together:
45\( \sqrt{7} \) + 7\( \sqrt{7} \)Find the average of the following numbers: 8, 4, 8, 4.
| 4 | |
| 9 | |
| 8 | |
| 6 |
To find the average of these 4 numbers add them together then divide by 4:
\( \frac{8 + 4 + 8 + 4}{4} \) = \( \frac{24}{4} \) = 6
What is the next number in this sequence: 1, 3, 7, 13, 21, __________ ?
| 28 | |
| 26 | |
| 31 | |
| 36 |
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