By buying two shirts, Frank will save $41 x \( \frac{10}{100} \) = \( \frac{$41 x 10}{100} \) = \( \frac{$410}{100} \) = $4.10 on the second shirt.

So, his total cost will be
$41.00 + ($41.00 - $4.10)
$41.00 + $36.90
$77.90

The distributive property for division helps in solving expressions like \({b + c \over a}\). It specifies that the result of dividing a fraction with multiple terms in the numerator and one term in the denominator can be obtained by dividing each term individually and then totaling the results: \({b + c \over a} = {b \over a} + {c \over a}\). For example, \({a^3 + 6a^2 \over a^2} = {a^3 \over a^2} + {6a^2 \over a^2} = a + 6\).

The hourly error rate for this machine is the error rate in parts per 100 multiplied by the number of parts produced per hour:

\( \frac{9}{100} \) x 7 = \( \frac{9 \times 7}{100} \) = \( \frac{63}{100} \) = 0.63 errors per hour

So, in an average hour, the machine will produce 7 - 0.63 = 6.37 error free parts.

The machine ran for 24 - 6 = 18 hours yesterday so you would expect that 18 x 6.37 = 114.7 error free parts were produced yesterday.

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

9\( \sqrt{8} \) - 4\( \sqrt{2} \)
9\( \sqrt{4 \times 2} \) - 4\( \sqrt{2} \)
9\( \sqrt{2^2 \times 2} \) - 4\( \sqrt{2} \)
(9)(2)\( \sqrt{2} \) - 4\( \sqrt{2} \)
18\( \sqrt{2} \) - 4\( \sqrt{2} \)

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

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