| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.37 |
| Score | 0% | 67% |
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 5% off." If Charlie buys two shirts, each with a regular price of $18, how much money will he save?
| $4.50 | |
| $8.10 | |
| $0.90 | |
| $7.20 |
By buying two shirts, Charlie will save $18 x \( \frac{5}{100} \) = \( \frac{$18 x 5}{100} \) = \( \frac{$90}{100} \) = $0.90 on the second shirt.
Convert x-3 to remove the negative exponent.
| \( \frac{-3}{-x} \) | |
| \( \frac{1}{x^3} \) | |
| \( \frac{-1}{-3x} \) | |
| \( \frac{3}{x} \) |
To convert a negative exponent to a positive exponent, calculate the positive exponent then take the reciprocal.
What is the next number in this sequence: 1, 5, 9, 13, 17, __________ ?
| 21 | |
| 20 | |
| 29 | |
| 16 |
The equation for this sequence is:
an = an-1 + 4
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 + 4
a6 = 17 + 4
a6 = 21
Solve 2 + (2 + 3) ÷ 3 x 2 - 42
| \(\frac{4}{5}\) | |
| 1\(\frac{2}{5}\) | |
| 2\(\frac{1}{4}\) | |
| -10\(\frac{2}{3}\) |
Use PEMDAS (Parentheses, Exponents, Multipy/Divide, Add/Subtract):
2 + (2 + 3) ÷ 3 x 2 - 42
P: 2 + (5) ÷ 3 x 2 - 42
E: 2 + 5 ÷ 3 x 2 - 16
MD: 2 + \( \frac{5}{3} \) x 2 - 16
MD: 2 + \( \frac{10}{3} \) - 16
AS: \( \frac{6}{3} \) + \( \frac{10}{3} \) - 16
AS: \( \frac{16}{3} \) - 16
AS: \( \frac{16 - 48}{3} \)
\( \frac{-32}{3} \)
-10\(\frac{2}{3}\)
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 10% off." If Damon buys two shirts, each with a regular price of $34, how much will he pay for both shirts?
| $37.40 | |
| $64.60 | |
| $30.60 | |
| $45.90 |
By buying two shirts, Damon will save $34 x \( \frac{10}{100} \) = \( \frac{$34 x 10}{100} \) = \( \frac{$340}{100} \) = $3.40 on the second shirt.
So, his total cost will be
$34.00 + ($34.00 - $3.40)
$34.00 + $30.60
$64.60