| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.31 |
| Score | 0% | 66% |
Which of the following is not an integer?
0 |
|
-1 |
|
1 |
|
\({1 \over 2}\) |
An integer is any whole number, including zero. An integer can be either positive or negative. Examples include -77, -1, 0, 55, 119.
This property states taht the order of addition or multiplication does not mater. For example, 2 + 5 and 5 + 2 are equivalent.
distributive |
|
commutative |
|
PEDMAS |
|
associative |
The commutative property states that, when adding or multiplying numbers, the order in which they're added or multiplied does not matter. For example, 3 + 4 and 4 + 3 give the same result, as do 3 x 4 and 4 x 3.
Monty loaned Roger $1,400 at an annual interest rate of 6%. If no payments are made, what is the interest owed on this loan at the end of the first year?
| $10 | |
| $54 | |
| $84 | |
| $39 |
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 $1,400
i = 0.06 x $1,400
i = $84
If there were a total of 150 raffle tickets sold and you bought 6 tickets, what's the probability that you'll win the raffle?
| 18% | |
| 4% | |
| 2% | |
| 15% |
You have 6 out of the total of 150 raffle tickets sold so you have a (\( \frac{6}{150} \)) x 100 = \( \frac{6 \times 100}{150} \) = \( \frac{600}{150} \) = 4% chance to win the raffle.
The total water usage for a city is 5,000 gallons each day. Of that total, 33% is for personal use and 57% is for industrial use. How many more gallons of water each day is consumed for industrial use over personal use?
| 3,200 | |
| 17,500 | |
| 1,200 | |
| 1,500 |
57% of the water consumption is industrial use and 33% is personal use so (57% - 33%) = 24% more water is used for industrial purposes. 5,000 gallons are consumed daily so industry consumes \( \frac{24}{100} \) x 5,000 gallons = 1,200 gallons.