| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.27 |
| Score | 0% | 65% |
What is 3y3 + 6y3?
| 9y-6 | |
| 9y3 | |
| -3y-3 | |
| -3y3 |
To add or subtract terms with exponents, both the base and the exponent must be the same. In this case they are so add the coefficients and retain the base and exponent:
3y3 + 6y3
(3 + 6)y3
9y3
A factor is a positive __________ that divides evenly into a given number.
improper fraction |
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mixed number |
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fraction |
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integer |
A factor is a positive integer that divides evenly into a given number. For example, the factors of 8 are 1, 2, 4, and 8.
This property states taht the order of addition or multiplication does not mater. For example, 2 + 5 and 5 + 2 are equivalent.
commutative |
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PEDMAS |
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distributive |
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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.
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 35% off." If Charlie buys two shirts, each with a regular price of $18, how much will he pay for both shirts?
| $23.40 | |
| $22.50 | |
| $29.70 | |
| $18.90 |
By buying two shirts, Charlie will save $18 x \( \frac{35}{100} \) = \( \frac{$18 x 35}{100} \) = \( \frac{$630}{100} \) = $6.30 on the second shirt.
So, his total cost will be
$18.00 + ($18.00 - $6.30)
$18.00 + $11.70
$29.70
Which of the following is not a prime number?
7 |
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2 |
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5 |
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9 |
A prime number is an integer greater than 1 that has no factors other than 1 and itself. Examples of prime numbers include 2, 3, 5, 7, and 11.