| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.17 |
| Score | 0% | 63% |
Solve 5 + (4 + 2) ÷ 3 x 2 - 22
| 1 | |
| 1\(\frac{2}{5}\) | |
| 5 | |
| 2 |
Use PEMDAS (Parentheses, Exponents, Multipy/Divide, Add/Subtract):
5 + (4 + 2) ÷ 3 x 2 - 22
P: 5 + (6) ÷ 3 x 2 - 22
E: 5 + 6 ÷ 3 x 2 - 4
MD: 5 + \( \frac{6}{3} \) x 2 - 4
MD: 5 + \( \frac{12}{3} \) - 4
AS: \( \frac{15}{3} \) + \( \frac{12}{3} \) - 4
AS: \( \frac{27}{3} \) - 4
AS: \( \frac{27 - 12}{3} \)
\( \frac{15}{3} \)
5
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 10% off." If Monty buys two shirts, each with a regular price of $18, how much will he pay for both shirts?
| $34.20 | |
| $26.10 | |
| $27.00 | |
| $1.80 |
By buying two shirts, Monty will save $18 x \( \frac{10}{100} \) = \( \frac{$18 x 10}{100} \) = \( \frac{$180}{100} \) = $1.80 on the second shirt.
So, his total cost will be
$18.00 + ($18.00 - $1.80)
$18.00 + $16.20
$34.20
What is the next number in this sequence: 1, 3, 7, 13, 21, __________ ?
| 30 | |
| 24 | |
| 31 | |
| 25 |
The equation for this sequence is:
an = an-1 + 2(n - 1)
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 + 2(6 - 1)
a6 = 21 + 2(5)
a6 = 31
Which of the following is not a prime number?
9 |
|
7 |
|
2 |
|
5 |
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.
What is 4x4 x 9x5?
| 36x9 | |
| 36x-1 | |
| 13x20 | |
| 36x20 |
To multiply terms with exponents, the base of both exponents must be the same. In this case they are so multiply the coefficients and add the exponents:
4x4 x 9x5
(4 x 9)x(4 + 5)
36x9