| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.50 |
| Score | 0% | 70% |
\({b + c \over a} = {b \over a} + {c \over a}\) defines which of the following?
commutative property for multiplication |
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commutative property for division |
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distributive property for multiplication |
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distributive property for division |
The distributive property for division helps in solving expressions like \({b + c \over a}\). It specifies that the result of dividing a fraction with multiple terms in the numerator and one term in the denominator can be obtained by dividing each term individually and then totaling the results: \({b + c \over a} = {b \over a} + {c \over a}\). For example, \({a^3 + 6a^2 \over a^2} = {a^3 \over a^2} + {6a^2 \over a^2} = a + 6\).
Which of the following is not an integer?
0 |
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-1 |
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\({1 \over 2}\) |
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1 |
An integer is any whole number, including zero. An integer can be either positive or negative. Examples include -77, -1, 0, 55, 119.
How many 13-passenger vans will it take to drive all 96 members of the football team to an away game?
| 4 vans | |
| 7 vans | |
| 5 vans | |
| 8 vans |
Calculate the number of vans needed by dividing the number of people that need transported by the capacity of one van:
vans = \( \frac{96}{13} \) = 7\(\frac{5}{13}\)
So, it will take 7 full vans and one partially full van to transport the entire team making a total of 8 vans.
What is \( \frac{4}{8} \) ÷ \( \frac{2}{9} \)?
| 2\(\frac{1}{4}\) | |
| \(\frac{1}{9}\) | |
| \(\frac{1}{5}\) | |
| \(\frac{1}{21}\) |
To divide fractions, invert the second fraction and then multiply:
\( \frac{4}{8} \) ÷ \( \frac{2}{9} \) = \( \frac{4}{8} \) x \( \frac{9}{2} \)
To multiply fractions, multiply the numerators together and then multiply the denominators together:
\( \frac{4}{8} \) x \( \frac{9}{2} \) = \( \frac{4 x 9}{8 x 2} \) = \( \frac{36}{16} \) = 2\(\frac{1}{4}\)
The __________ is the greatest factor that divides two integers.
greatest common factor |
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absolute value |
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least common multiple |
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greatest common multiple |
The greatest common factor (GCF) is the greatest factor that divides two integers.