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avatar+334 

 

Traveling at 55 miles per hour, how many minutes, rounded to the nearest whole number, does it take to drive 310 miles from Boston to Syracuse?  

 

These are my options: 

 

A. 6 

 

B. 338 

 

C. 365 

 

D 3,300 

 

I'm having trouble on figuring out where to start... 

 

Thank you in advanced for your spent time.

 May 31, 2019
 #1
avatar+8215 
+4

Note that   \(\frac{\text{55 miles}}{\text{1 hour}}\ =\ \frac{\text{55 miles}}{\text{60 minutes}}\)

 

Let  x  be the number of minutes it takes.

 

\( \frac{\text{55 miles}}{\text{60 minutes}}\cdot x\text{ minutes}\ =\ 310\text{ miles}\\~\\ x\text{ minutes}\ =\ 310\text{ miles}\cdot\frac {\text{60 minutes}}{\text{55 miles}}\\~\\ x\text{ minutes}\ =\ 310\cdot\frac {60}{55}\text{ minutes}\\~\\ x\text{ minutes}\ =\ \frac{18600}{55}\text{ minutes}\\~\\ x\text{ minutes}\ \approx\ 338\text{ minutes} \\~\\ x\ \approx\ 338\)

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 May 31, 2019
 #2
avatar+850 
-3

Nice Job!

Nickolas  May 31, 2019
 #3
avatar+334 
-2

Thank you so much I really apricate that.

HiylinLink  May 31, 2019

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