| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.89 |
| Score | 0% | 58% |
\({b + c \over a} = {b \over a} + {c \over a}\) defines which of the following?
distributive property for division |
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distributive property for multiplication |
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commutative property for multiplication |
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commutative 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, \({a^3 + 6a^2 \over a^2} = {a^3 \over a^2} + {6a^2 \over a^2} = a + 6\).
If a mayor is elected with 78% of the votes cast and 64% of a town's 24,000 voters cast a vote, how many votes did the mayor receive?
| 11,827 | |
| 11,981 | |
| 12,134 | |
| 13,670 |
If 64% of the town's 24,000 voters cast ballots the number of votes cast is:
(\( \frac{64}{100} \)) x 24,000 = \( \frac{1,536,000}{100} \) = 15,360
The mayor got 78% of the votes cast which is:
(\( \frac{78}{100} \)) x 15,360 = \( \frac{1,198,080}{100} \) = 11,981 votes.
The __________ is the greatest factor that divides two integers.
greatest common multiple |
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greatest common factor |
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absolute value |
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least common multiple |
The greatest common factor (GCF) is the greatest factor that divides two integers.
Which of the following is not a prime number?
7 |
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2 |
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9 |
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5 |
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.
If the ratio of home fans to visiting fans in a crowd is 2:1 and all 32,000 seats in a stadium are filled, how many home fans are in attendance?
| 35,000 | |
| 24,800 | |
| 21,333 | |
| 36,000 |
A ratio of 2:1 means that there are 2 home fans for every one visiting fan. So, of every 3 fans, 2 are home fans and \( \frac{2}{3} \) of every fan in the stadium is a home fan:
32,000 fans x \( \frac{2}{3} \) = \( \frac{64000}{3} \) = 21,333 fans.