| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.89 |
| Score | 0% | 58% |
On average, the center for a basketball team hits 40% of his shots while a guard on the same team hits 45% of his shots. If the guard takes 15 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?
| 13 | |
| 14 | |
| 30 | |
| 15 |
guard shots made = shots taken x \( \frac{\text{% made}}{100} \) = 15 x \( \frac{45}{100} \) = \( \frac{45 x 15}{100} \) = \( \frac{675}{100} \) = 6 shots
The center makes 40% 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 = \( \frac{6}{\frac{40}{100}} \) = 6 x \( \frac{100}{40} \) = \( \frac{6 x 100}{40} \) = \( \frac{600}{40} \) = 15 shots
to make the same number of shots as the guard and thus score the same number of points.
If \( \left|x + 8\right| \) + 3 = 0, which of these is a possible value for x?
| -4 | |
| -10 | |
| 11 | |
| -5 |
First, solve for \( \left|x + 8\right| \):
\( \left|x + 8\right| \) + 3 = 0
\( \left|x + 8\right| \) = 0 - 3
\( \left|x + 8\right| \) = -3
The value inside the absolute value brackets can be either positive or negative so (x + 8) must equal - 3 or --3 for \( \left|x + 8\right| \) to equal -3:
| x + 8 = -3 x = -3 - 8 x = -11 | x + 8 = 3 x = 3 - 8 x = -5 |
So, x = -5 or x = -11.
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 5% off." If Bob buys two shirts, each with a regular price of $23, how much will he pay for both shirts?
| $26.45 | |
| $44.85 | |
| $27.60 | |
| $1.15 |
By buying two shirts, Bob will save $23 x \( \frac{5}{100} \) = \( \frac{$23 x 5}{100} \) = \( \frac{$115}{100} \) = $1.15 on the second shirt.
So, his total cost will be
$23.00 + ($23.00 - $1.15)
$23.00 + $21.85
$44.85
Ezra loaned Latoya $100 at an annual interest rate of 6%. If no payments are made, what is the total amount owed at the end of the first year?
| $108 | |
| $102 | |
| $106 | |
| $105 |
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 $100
i = 0.06 x $100
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $100 + $6A tiger in a zoo has consumed 88 pounds of food in 8 days. If the tiger continues to eat at the same rate, in how many more days will its total food consumtion be 143 pounds?
| 5 | |
| 9 | |
| 3 | |
| 7 |
If the tiger has consumed 88 pounds of food in 8 days that's \( \frac{88}{8} \) = 11 pounds of food per day. The tiger needs to consume 143 - 88 = 55 more pounds of food to reach 143 pounds total. At 11 pounds of food per day that's \( \frac{55}{11} \) = 5 more days.