| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.34 |
| Score | 0% | 67% |
What is (y4)2?
| 4y2 | |
| y2 | |
| y8 | |
| y-2 |
To raise a term with an exponent to another exponent, retain the base and multiply the exponents:
(y4)2
| 2.8 | |
| 4.9 | |
| 1 | |
| 1.2 |
1
Charlie loaned April $1,300 at an annual interest rate of 7%. If no payments are made, what is the total amount owed at the end of the first year?
| $1,326 | |
| $1,391 | |
| $1,378 | |
| $1,404 |
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 $1,300
i = 0.07 x $1,300
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $1,300 + $9125 members of a bridal party need transported to a wedding reception but there are only 4 5-passenger taxis available to take them. How many will need to find other transportation?
| 1 | |
| 9 | |
| 5 | |
| 8 |
There are 4 5-passenger taxis available so that's 4 x 5 = 20 total seats. There are 25 people needing transportation leaving 25 - 20 = 5 who will have to find other transportation.
If all of a roofing company's 9 workers are required to staff 3 roofing crews, how many workers need to be added during the busy season in order to send 5 complete crews out on jobs?
| 6 | |
| 5 | |
| 16 | |
| 14 |
In order to find how many additional workers are needed to staff the extra crews you first need to calculate how many workers are on a crew. There are 9 workers at the company now and that's enough to staff 3 crews so there are \( \frac{9}{3} \) = 3 workers on a crew. 5 crews are needed for the busy season which, at 3 workers per crew, means that the roofing company will need 5 x 3 = 15 total workers to staff the crews during the busy season. The company already employs 9 workers so they need to add 15 - 9 = 6 new staff for the busy season.