| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.51 |
| Score | 0% | 50% |
If a mayor is elected with 80% of the votes cast and 45% of a town's 27,000 voters cast a vote, how many votes did the mayor receive?
| 8,505 | |
| 10,692 | |
| 9,842 | |
| 9,720 |
If 45% of the town's 27,000 voters cast ballots the number of votes cast is:
(\( \frac{45}{100} \)) x 27,000 = \( \frac{1,215,000}{100} \) = 12,150
The mayor got 80% of the votes cast which is:
(\( \frac{80}{100} \)) x 12,150 = \( \frac{972,000}{100} \) = 9,720 votes.
On average, the center for a basketball team hits 40% of his shots while a guard on the same team hits 45% of his shots. If the guard takes 10 shots during a game, how many shots will the center have to take to score as many points as the guard assuming each shot is worth the same number of points?
| 11 | |
| 12 | |
| 10 | |
| 9 |
guard shots made = shots taken x \( \frac{\text{% made}}{100} \) = 10 x \( \frac{45}{100} \) = \( \frac{45 x 10}{100} \) = \( \frac{450}{100} \) = 4 shots
The center makes 40% of his shots so he'll have to take:
shots made = shots taken x \( \frac{\text{% made}}{100} \)
shots taken = \( \frac{\text{shots taken}}{\frac{\text{% made}}{100}} \)
to make as many shots as the guard. Plugging in values for the center gives us:
center shots taken = \( \frac{4}{\frac{40}{100}} \) = 4 x \( \frac{100}{40} \) = \( \frac{4 x 100}{40} \) = \( \frac{400}{40} \) = 10 shots
to make the same number of shots as the guard and thus score the same number of points.
Which of the following statements about exponents is false?
all of these are false |
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b0 = 1 |
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b1 = b |
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b1 = 1 |
A number with an exponent (be) consists of a base (b) raised to a power (e). The exponent indicates the number of times that the base is multiplied by itself. A base with an exponent of 1 equals the base (b1 = b) and a base with an exponent of 0 equals 1 ( (b0 = 1).
Latoya scored 80% on her final exam. If each question was worth 2 points and there were 60 possible points on the exam, how many questions did Latoya answer correctly?
| 31 | |
| 24 | |
| 32 | |
| 38 |
Latoya scored 80% on the test meaning she earned 80% of the possible points on the test. There were 60 possible points on the test so she earned 60 x 0.8 = 48 points. Each question is worth 2 points so she got \( \frac{48}{2} \) = 24 questions right.
\({b + c \over a} = {b \over a} + {c \over a}\) defines which of the following?
distributive property for multiplication |
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commutative property for multiplication |
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distributive property for division |
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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, \({a^3 + 6a^2 \over a^2} = {a^3 \over a^2} + {6a^2 \over a^2} = a + 6\).