| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.16 |
| Score | 0% | 63% |
How many 12-passenger vans will it take to drive all 95 members of the football team to an away game?
| 15 vans | |
| 11 vans | |
| 3 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 = \( \frac{95}{12} \) = 7\(\frac{11}{12}\)
So, it will take 7 full vans and one partially full van to transport the entire team making a total of 8 vans.
Which of these numbers is a factor of 56?
| 15 | |
| 5 | |
| 28 | |
| 6 |
The factors of a number are all positive integers that divide evenly into the number. The factors of 56 are 1, 2, 4, 7, 8, 14, 28, 56.
If \( \left|a - 9\right| \) - 4 = 0, which of these is a possible value for a?
| 13 | |
| -3 | |
| -6 | |
| 10 |
First, solve for \( \left|a - 9\right| \):
\( \left|a - 9\right| \) - 4 = 0
\( \left|a - 9\right| \) = 0 + 4
\( \left|a - 9\right| \) = 4
The value inside the absolute value brackets can be either positive or negative so (a - 9) must equal + 4 or -4 for \( \left|a - 9\right| \) to equal 4:
| a - 9 = 4 a = 4 + 9 a = 13 | a - 9 = -4 a = -4 + 9 a = 5 |
So, a = 5 or a = 13.
A sports card collection contains football, baseball, and basketball cards. If the ratio of football to baseball cards is 9 to 2 and the ratio of baseball to basketball cards is 9 to 1, what is the ratio of football to basketball cards?
| 9:6 | |
| 1:8 | |
| 81:2 | |
| 7:1 |
The ratio of football cards to baseball cards is 9:2 and the ratio of baseball cards to basketball cards is 9:1. To solve this problem, we need the baseball card side of each ratio to be equal so we need to rewrite the ratios in terms of a common number of baseball cards. (Think of this like finding the common denominator when adding fractions.) The ratio of football to baseball cards can also be written as 81:18 and the ratio of baseball cards to basketball cards as 18:2. So, the ratio of football cards to basketball cards is football:baseball, baseball:basketball or 81:18, 18:2 which reduces to 81:2.
If a mayor is elected with 85% of the votes cast and 72% of a town's 17,000 voters cast a vote, how many votes did the mayor receive?
| 10,649 | |
| 8,446 | |
| 10,404 | |
| 9,914 |
If 72% of the town's 17,000 voters cast ballots the number of votes cast is:
(\( \frac{72}{100} \)) x 17,000 = \( \frac{1,224,000}{100} \) = 12,240
The mayor got 85% of the votes cast which is:
(\( \frac{85}{100} \)) x 12,240 = \( \frac{1,040,400}{100} \) = 10,404 votes.