| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.57 |
| Score | 0% | 71% |
A tiger in a zoo has consumed 50 pounds of food in 5 days. If the tiger continues to eat at the same rate, in how many more days will its total food consumtion be 110 pounds?
| 6 | |
| 11 | |
| 8 | |
| 1 |
If the tiger has consumed 50 pounds of food in 5 days that's \( \frac{50}{5} \) = 10 pounds of food per day. The tiger needs to consume 110 - 50 = 60 more pounds of food to reach 110 pounds total. At 10 pounds of food per day that's \( \frac{60}{10} \) = 6 more days.
Which of the following is a mixed number?
\({5 \over 7} \) |
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\({7 \over 5} \) |
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\({a \over 5} \) |
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\(1 {2 \over 5} \) |
A rational number (or fraction) is represented as a ratio between two integers, a and b, and has the form \({a \over b}\) where a is the numerator and b is the denominator. An improper fraction (\({5 \over 3} \)) has a numerator with a greater absolute value than the denominator and can be converted into a mixed number (\(1 {2 \over 3} \)) which has a whole number part and a fractional part.
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 10% off." If Alex buys two shirts, each with a regular price of $47, how much money will he save?
| $9.40 | |
| $4.70 | |
| $2.35 | |
| $7.05 |
By buying two shirts, Alex will save $47 x \( \frac{10}{100} \) = \( \frac{$47 x 10}{100} \) = \( \frac{$470}{100} \) = $4.70 on the second shirt.
What is (c2)5?
| c10 | |
| 5c2 | |
| c7 | |
| c3 |
To raise a term with an exponent to another exponent, retain the base and multiply the exponents:
(c2)5Solve for \( \frac{3!}{2!} \)
| 336 | |
| \( \frac{1}{72} \) | |
| \( \frac{1}{20} \) | |
| 3 |
A factorial is the product of an integer and all the positive integers below it. To solve a fraction featuring factorials, expand the factorials and cancel out like numbers:
\( \frac{3!}{2!} \)
\( \frac{3 \times 2 \times 1}{2 \times 1} \)
\( \frac{3}{1} \)
3