| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.53 |
| Score | 0% | 71% |
This property states taht the order of addition or multiplication does not mater. For example, 2 + 5 and 5 + 2 are equivalent.
commutative |
|
distributive |
|
associative |
|
PEDMAS |
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.
What is (a3)3?
| a0 | |
| a9 | |
| 3a3 | |
| a6 |
To raise a term with an exponent to another exponent, retain the base and multiply the exponents:
(a3)3Ezra loaned Christine $1,500 at an annual interest rate of 4%. If no payments are made, what is the total amount owed at the end of the first year?
| $1,620 | |
| $1,515 | |
| $1,560 | |
| $1,605 |
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 $1,500
i = 0.04 x $1,500
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $1,500 + $60What is the next number in this sequence: 1, 6, 11, 16, 21, __________ ?
| 17 | |
| 35 | |
| 32 | |
| 26 |
The equation for this sequence is:
an = an-1 + 5
where n is the term's order in the sequence, an is the value of the term, and an-1 is the value of the term before an. This makes the next number:
a6 = a5 + 5
a6 = 21 + 5
a6 = 26
If a mayor is elected with 54% of the votes cast and 31% of a town's 15,000 voters cast a vote, how many votes did the mayor receive?
| 2,372 | |
| 3,534 | |
| 2,511 | |
| 2,744 |
If 31% of the town's 15,000 voters cast ballots the number of votes cast is:
(\( \frac{31}{100} \)) x 15,000 = \( \frac{465,000}{100} \) = 4,650
The mayor got 54% of the votes cast which is:
(\( \frac{54}{100} \)) x 4,650 = \( \frac{251,100}{100} \) = 2,511 votes.