| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.15 |
| Score | 0% | 63% |
Solve 4 + (3 + 4) ÷ 5 x 2 - 22
| \(\frac{7}{9}\) | |
| \(\frac{7}{8}\) | |
| 3 | |
| 2\(\frac{4}{5}\) |
Use PEMDAS (Parentheses, Exponents, Multipy/Divide, Add/Subtract):
4 + (3 + 4) ÷ 5 x 2 - 22
P: 4 + (7) ÷ 5 x 2 - 22
E: 4 + 7 ÷ 5 x 2 - 4
MD: 4 + \( \frac{7}{5} \) x 2 - 4
MD: 4 + \( \frac{14}{5} \) - 4
AS: \( \frac{20}{5} \) + \( \frac{14}{5} \) - 4
AS: \( \frac{34}{5} \) - 4
AS: \( \frac{34 - 20}{5} \)
\( \frac{14}{5} \)
2\(\frac{4}{5}\)
9 members of a bridal party need transported to a wedding reception but there are only 2 4-passenger taxis available to take them. How many will need to find other transportation?
| 5 | |
| 1 | |
| 8 | |
| 9 |
There are 2 4-passenger taxis available so that's 2 x 4 = 8 total seats. There are 9 people needing transportation leaving 9 - 8 = 1 who will have to find other transportation.
If \(\left|a\right| = 7\), which of the following best describes a?
a = 7 or a = -7 |
|
a = 7 |
|
none of these is correct |
|
a = -7 |
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).
Ezra loaned Jennifer $100 at an annual interest rate of 3%. If no payments are made, what is the total amount owed at the end of the first year?
| $103 | |
| $106 | |
| $108 | |
| $105 |
The yearly interest charged on this loan is the annual interest rate multiplied by the amount borrowed:
interest = annual interest rate x loan amount
i = (\( \frac{6}{100} \)) x $100
i = 0.03 x $100
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $100 + $3If a mayor is elected with 77% of the votes cast and 67% of a town's 42,000 voters cast a vote, how many votes did the mayor receive?
| 24,200 | |
| 14,914 | |
| 16,884 | |
| 21,668 |
If 67% of the town's 42,000 voters cast ballots the number of votes cast is:
(\( \frac{67}{100} \)) x 42,000 = \( \frac{2,814,000}{100} \) = 28,140
The mayor got 77% of the votes cast which is:
(\( \frac{77}{100} \)) x 28,140 = \( \frac{2,166,780}{100} \) = 21,668 votes.