| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.01 |
| Score | 0% | 60% |
A bread recipe calls for 3\(\frac{1}{4}\) cups of flour. If you only have \(\frac{7}{8}\) cup, how much more flour is needed?
| \(\frac{7}{8}\) cups | |
| 2 cups | |
| 2\(\frac{3}{8}\) cups | |
| 3\(\frac{1}{4}\) cups |
The amount of flour you need is (3\(\frac{1}{4}\) - \(\frac{7}{8}\)) cups. Rewrite the quantities so they share a common denominator and subtract:
(\( \frac{26}{8} \) - \( \frac{7}{8} \)) cups
\( \frac{19}{8} \) cups
2\(\frac{3}{8}\) cups
| 0.4 | |
| 1.4 | |
| 1 | |
| 4.0 |
1
Which of the following statements about exponents is false?
all of these are false |
|
b1 = b |
|
b0 = 1 |
|
b1 = 1 |
A number with an exponent (be) consists of a base (b) raised to a power (e). The exponent indicates the number of times that the base is multiplied by itself. A base with an exponent of 1 equals the base (b1 = b) and a base with an exponent of 0 equals 1 ( (b0 = 1).
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 45% off." If Damon buys two shirts, each with a regular price of $47, how much will he pay for both shirts?
| $58.75 | |
| $63.45 | |
| $68.15 | |
| $72.85 |
By buying two shirts, Damon will save $47 x \( \frac{45}{100} \) = \( \frac{$47 x 45}{100} \) = \( \frac{$2115}{100} \) = $21.15 on the second shirt.
So, his total cost will be
$47.00 + ($47.00 - $21.15)
$47.00 + $25.85
$72.85
4! = ?
5 x 4 x 3 x 2 x 1 |
|
4 x 3 x 2 x 1 |
|
3 x 2 x 1 |
|
4 x 3 |
A factorial has the form n! and is the product of the integer (n) and all the positive integers below it. For example, 5! = 5 x 4 x 3 x 2 x 1 = 120.