| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.10 |
| Score | 0% | 62% |
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 45% off." If Monty buys two shirts, each with a regular price of $32, how much money will he save?
| $8.00 | |
| $12.80 | |
| $9.60 | |
| $14.40 |
By buying two shirts, Monty will save $32 x \( \frac{45}{100} \) = \( \frac{$32 x 45}{100} \) = \( \frac{$1440}{100} \) = $14.40 on the second shirt.
The __________ is the smallest positive integer that is a multiple of two or more integers.
greatest common factor |
|
absolute value |
|
least common multiple |
|
least common factor |
The least common multiple (LCM) is the smallest positive integer that is a multiple of two or more integers.
A tiger in a zoo has consumed 90 pounds of food in 6 days. If the tiger continues to eat at the same rate, in how many more days will its total food consumtion be 135 pounds?
| 3 | |
| 7 | |
| 8 | |
| 1 |
If the tiger has consumed 90 pounds of food in 6 days that's \( \frac{90}{6} \) = 15 pounds of food per day. The tiger needs to consume 135 - 90 = 45 more pounds of food to reach 135 pounds total. At 15 pounds of food per day that's \( \frac{45}{15} \) = 3 more days.
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 25% off." If Charlie buys two shirts, each with a regular price of $17, how much will he pay for both shirts?
| $24.65 | |
| $29.75 | |
| $21.25 | |
| $12.75 |
By buying two shirts, Charlie will save $17 x \( \frac{25}{100} \) = \( \frac{$17 x 25}{100} \) = \( \frac{$425}{100} \) = $4.25 on the second shirt.
So, his total cost will be
$17.00 + ($17.00 - $4.25)
$17.00 + $12.75
$29.75
What is \( \frac{3}{9} \) x \( \frac{4}{7} \)?
| 1\(\frac{5}{7}\) | |
| \(\frac{16}{63}\) | |
| \(\frac{1}{21}\) | |
| \(\frac{4}{21}\) |
To multiply fractions, multiply the numerators together and then multiply the denominators together:
\( \frac{3}{9} \) x \( \frac{4}{7} \) = \( \frac{3 x 4}{9 x 7} \) = \( \frac{12}{63} \) = \(\frac{4}{21}\)