Question

question 20 (1 point)
write the indo-arabic equivalent for the following.

mcmlxv

show all appropriate work on loose leaf paper to be submitted as a single pdf file for the file response question at the end of the test. the answer in the answer box is worth 1 point and the work is worth 4 pts.

question 21 (1 point)
perform the indicated operation, being careful not to leave more than 59 seconds or 59 minutes in your answers.

9 hours 26 minutes 57 seconds

• 2 hours 55 minutes 39 seconds

show all appropriate work on loose leaf paper to be submitted as a single pdf file for the file response question at the end of the test. the answer in the answer box is worth 1 point and the work is worth 4 pts.

Explanation:

Convert Roman numerals to Indo-Arabic

Using the Roman Numerals knowledge point

$$
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$$

Subtract the seconds

Subtract the seconds column.
Since \(57 > 39\), no borrowing is needed.

$$ 57\text{ s} - 39\text{ s} = 18\text{ s} $$

Subtract the minutes

Subtract the minutes column.
Since \(26 < 55\), borrow \(1\text{ hour}\) (\(60\text{ minutes}\)) from the hours column.

$$
LATEXBLOCK1
$$

Subtract the hours

Subtract the remaining hours.

$$ 8\text{ h} - 2\text{ h} = 6\text{ h} $$

Answer:

Question 20

1965

Question 21

6 hours, 31 minutes, 18 seconds