Average speed in miles per hour is the number of miles traveled divided by the number of hours:

Solving for time:

time = \( \frac{\text{distance}}{\text{speed}} \)
time = \( \frac{220mi}{55mph} \)
4 hours

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.

To subtract these radicals together their radicands must be the same:

2\( \sqrt{48} \) - 6\( \sqrt{3} \)
2\( \sqrt{16 \times 3} \) - 6\( \sqrt{3} \)
2\( \sqrt{4^2 \times 3} \) - 6\( \sqrt{3} \)
(2)(4)\( \sqrt{3} \) - 6\( \sqrt{3} \)
8\( \sqrt{3} \) - 6\( \sqrt{3} \)

Now that the radicands are identical, you can subtract them:

If 54% of the town's 25,000 voters cast ballots the number of votes cast is:

(\( \frac{54}{100} \)) x 25,000 = \( \frac{1,350,000}{100} \) = 13,500

The mayor got 56% of the votes cast which is:

(\( \frac{56}{100} \)) x 13,500 = \( \frac{756,000}{100} \) = 7,560 votes.

To multiply fractions, multiply the numerators together and then multiply the denominators together:

\( \frac{2}{9} \) x \( \frac{1}{6} \) = \( \frac{2 x 1}{9 x 6} \) = \( \frac{2}{54} \) = \(\frac{1}{27}\)