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Using a stopwatch Tyrone determines it takes him 58.2 minutes to travel 30 miles to work the stopwatch measures to hundredths of a minute going by the accuracy of the stopwatch which is the most accurate determination for the number of feet per second Tyrone traveled on his way to work?


1 mile = 5,280 feet



1. 19.80 feet ps


2. 19.84 feet ps


3. 45.3 feet ps


4. 45.36 feet ps

Respuesta :

frika

Answer:

Correct choice is 4.

Step-by-step explanation:

Tyrone determines it takes him 58.2 minutes to travel 30 miles to work, then he travels with speed

[tex]\dfrac{30}{58.2}=\dfrac{300}{582}=\dfrac{50}{97}\ \text{miles per minute}.[/tex]

If 1 mile = 5,280 feet, then his speed is

[tex]\dfrac{50}{97}\cdot 5280=\dfrac{264000}{97}\ \text{feet per minute}.[/tex]

Since 1 minute = 60 seconds, then his speed is

[tex]\dfrac{264000}{97\cdot 60}=\dfrac{4400}{97}\approx 45.36\ \text{feet per second}.[/tex]


schooltimehp5

Answer:

45.36 feet ps IS THE ANSWER AND NOW GO AND SOLVE IT

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