| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.48 |
| Score | 0% | 70% |
If a mayor is elected with 53% of the votes cast and 42% of a town's 33,000 voters cast a vote, how many votes did the mayor receive?
| 7,623 | |
| 7,346 | |
| 12,058 | |
| 10,395 |
If 42% of the town's 33,000 voters cast ballots the number of votes cast is:
(\( \frac{42}{100} \)) x 33,000 = \( \frac{1,386,000}{100} \) = 13,860
The mayor got 53% of the votes cast which is:
(\( \frac{53}{100} \)) x 13,860 = \( \frac{734,580}{100} \) = 7,346 votes.
A factor is a positive __________ that divides evenly into a given number.
mixed number |
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improper fraction |
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fraction |
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integer |
A factor is a positive integer that divides evenly into a given number. For example, the factors of 8 are 1, 2, 4, and 8.
If \(\left|a\right| = 7\), which of the following best describes a?
a = 7 |
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a = -7 |
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a = 7 or a = -7 |
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none of these is correct |
The absolute value is the positive magnitude of a particular number or variable and is indicated by two vertical lines: \(\left|-5\right| = 5\). In the case of a variable absolute value (\(\left|a\right| = 5\)) the value of a can be either positive or negative (a = -5 or a = 5).
Simplify \( \frac{20}{44} \).
| \( \frac{7}{13} \) | |
| \( \frac{1}{2} \) | |
| \( \frac{5}{19} \) | |
| \( \frac{5}{11} \) |
To simplify this fraction, first find the greatest common factor between them. The factors of 20 are [1, 2, 4, 5, 10, 20] and the factors of 44 are [1, 2, 4, 11, 22, 44]. They share 3 factors [1, 2, 4] making 4 their greatest common factor (GCF).
Next, divide both numerator and denominator by the GCF:
\( \frac{20}{44} \) = \( \frac{\frac{20}{4}}{\frac{44}{4}} \) = \( \frac{5}{11} \)
a(b + c) = ab + ac 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 multiplication helps in solving expressions like a(b + c). It specifies that the result of multiplying one number by the sum or difference of two numbers can be obtained by multiplying each number individually and then totaling the results: a(b + c) = ab + ac. For example, 4(10-5) = (4 x 10) - (4 x 5) = 40 - 20 = 20.