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@bawbdmo is this answer correct?

@bawbdmo is this answer correct?-example-1

2 Answers

4 votes

Hello!

To find our answer, we will divide our mileage by the rate to find the time.

310/55≈5.64≈6

Now we multiply by 60 to show this in minutes

360≈365

Therefore, our answer is C) 365

I hope this helps!

User Lgriffiths
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1 vote

This is a dimensional analysis problem:


\frac{1 \text{ hour}}{55 \text{ miles}}*310\text{ miles} = (310)/(55)\text{ hours} *\frac{60 \text{ minutes}}{1 \text{ hours}}\approx 338 \text{ minutes}

A lot of stuff we do is shorthand dimensional analysis, so it written out like this often seems unintuitive but this is basically how you go from miles per hour to minutes, in a somewhat rigorous manner.

User Cuadue
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