| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.61 |
| Score | 0% | 72% |
Which of the following is a mixed number?
\(1 {2 \over 5} \) |
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\({5 \over 7} \) |
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\({7 \over 5} \) |
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\({a \over 5} \) |
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.
How many 9-passenger vans will it take to drive all 82 members of the football team to an away game?
| 5 vans | |
| 6 vans | |
| 14 vans | |
| 10 vans |
Calculate the number of vans needed by dividing the number of people that need transported by the capacity of one van:
vans = \( \frac{82}{9} \) = 9\(\frac{1}{9}\)
So, it will take 9 full vans and one partially full van to transport the entire team making a total of 10 vans.
Which of the following is not a prime number?
5 |
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9 |
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2 |
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7 |
A prime number is an integer greater than 1 that has no factors other than 1 and itself. Examples of prime numbers include 2, 3, 5, 7, and 11.
This property states taht the order of addition or multiplication does not mater. For example, 2 + 5 and 5 + 2 are equivalent.
PEDMAS |
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commutative |
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associative |
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distributive |
The commutative property states that, when adding or multiplying numbers, the order in which they're added or multiplied does not matter. For example, 3 + 4 and 4 + 3 give the same result, as do 3 x 4 and 4 x 3.
Find the average of the following numbers: 14, 8, 15, 7.
| 14 | |
| 12 | |
| 11 | |
| 8 |
To find the average of these 4 numbers add them together then divide by 4:
\( \frac{14 + 8 + 15 + 7}{4} \) = \( \frac{44}{4} \) = 11