Question

Peyton is a sprinter who can run the 40-yard dash in 4.5 seconds. He converts his speed into miles per hour using various conversion factors.

40 yd /4.5 sec. 3 ft/ 1 yd 5280 ft/ 1 mi. 60 sec / 1 min. 60 min / 1 hr
Which ratio is incorrectly written to convert his speed?
A) 3 ft / 1 yd
B) 1 min / 60 sec
C) 5280 ft / 1 mi
D) 60 min / 1 hr

Answer 1

Upon reviewing each conversion factor provided in the question, it can be concluded that all the given ratios (3 ft / 1 yd, 1 min / 60 sec, 5280 ft / 1 mi, 60 min / 1 hr) are correctly written. There is no incorrectly written ratio in the question to convert Peyton's speed.

Step-by-step explanation:

The student question relates to converting Peyton's running speed in a 40-yard dash to miles per hour using various conversion factors. To find which ratio is incorrectly written to convert his speed, we must examine each provided ratio:

• 3 ft / 1 yd (Correct: There are 3 feet in 1 yard)
• 1 min / 60 sec (Correct: There are 60 seconds in 1 minute)
• 5280 ft / 1 mi (Correct: There are 5280 feet in 1 mile)
• 60 min / 1 hr (Correct: There are 60 minutes in 1 hour)

Upon reviewing the ratios, it is clear that all of them are written correctly, which implies there might be an error in the premise of the question. Therefore, it can be concluded that no provided ratio is incorrectly written to convert Peyton's speed.