Dean ran 5 miles this week and wants to know how many kilometers he ran. His work is below:

Question

5 miles/1 x 1.61 km/ 1 mile = 80.5 miles
Units of Length
Customary System Units Metric System Units
1 mile 1.61 kilometers

What are Dean’s errors? Select the two that apply.

(2 points)
Responses

Dean should have used two conversion factors.
Dean should have used two conversion factors.

He has the wrong units in his answer.
He has the wrong units in his answer.

The decimal point in his answer is in the wrong place.
The decimal point in his answer is in the wrong place.

Dean should have kilometers in the denominator of the conversion factor.

Answer 1

Dean made the following errors:

1. He has the wrong units in his answer. - Dean stated he ran "80.5 miles" instead of the correct conversion to kilometers.

2. The decimal point in his answer is in the wrong place. - Since 5 miles is actually approximately 8.05 kilometers, stating "80.5 miles" is incorrect and indicates a misplaced decimal point.

Therefore, the correct responses are the second and third options.