| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.28 |
| Score | 0% | 66% |
Charlie loaned Bob $400 at an annual interest rate of 2%. If no payments are made, what is the interest owed on this loan at the end of the first year?
| $70 | |
| $8 | |
| $90 | |
| $35 |
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 $400
i = 0.02 x $400
i = $8
Bob loaned Diane $900 at an annual interest rate of 6%. If no payments are made, what is the total amount owed at the end of the first year?
| $981 | |
| $927 | |
| $945 | |
| $954 |
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 $900
i = 0.06 x $900
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $900 + $54If the ratio of home fans to visiting fans in a crowd is 3:1 and all 37,000 seats in a stadium are filled, how many home fans are in attendance?
| 25,500 | |
| 24,667 | |
| 27,750 | |
| 34,400 |
A ratio of 3:1 means that there are 3 home fans for every one visiting fan. So, of every 4 fans, 3 are home fans and \( \frac{3}{4} \) of every fan in the stadium is a home fan:
37,000 fans x \( \frac{3}{4} \) = \( \frac{111000}{4} \) = 27,750 fans.
This property states taht the order of addition or multiplication does not mater. For example, 2 + 5 and 5 + 2 are equivalent.
commutative |
|
distributive |
|
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.
Find the average of the following numbers: 13, 7, 11, 9.
| 14 | |
| 15 | |
| 10 | |
| 12 |
To find the average of these 4 numbers add them together then divide by 4:
\( \frac{13 + 7 + 11 + 9}{4} \) = \( \frac{40}{4} \) = 10