SOLUTION: if a car is travelling at a rate of 55 miles per hour,how many minutes would it take to travel 25 km?

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Question 975133: if a car is travelling at a rate of 55 miles per hour,how many minutes would it take to travel 25 km?
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
Change 55 miles per hour to kilometers per minute.

matrix%281%2C2%2C55%2Cmi%29%2Fmatrix%281%2C2%2C1%2Chr%29%22%D7%22matrix%281%2C2%2C1%2Chr%29%2Fmatrix%281%2C2%2C60%2Cmin%29%22%D7%22matrix%281%2C2%2C5280%2Cft%29%2Fmatrix%281%2C2%2C1%2Cmi%29%22%D7%22matrix%281%2C2%2C12%2Cin%29%2Fmatrix%281%2C2%2C1%2Cft%29%22%D7%22matrix%281%2C2%2C2.54%2Ccm%29%2Fmatrix%281%2C2%2C1%2Cin%29%22%D7%22matrix%281%2C2%2C1%2Cm%29%2Fmatrix%281%2C2%2C100%2Ccm%29%22%D7%22matrix%281%2C2%2C1%2Ckm%29%2Fmatrix%281%2C2%2C1000%2Cm%29

Cancel the miles

matrix%281%2C2%2C55%2Ccross%28mi%29%29%2Fmatrix%281%2C2%2C1%2Chr%29%22%D7%22matrix%281%2C2%2C1%2Chr%29%2Fmatrix%281%2C2%2C60%2Cmin%29%22%D7%22matrix%281%2C2%2C5280%2Cft%29%2Fmatrix%281%2C2%2C1%2Ccross%28mi%29%29%22%D7%22matrix%281%2C2%2C12%2Cin%29%2Fmatrix%281%2C2%2C1%2Cft%29%22%D7%22matrix%281%2C2%2C2.54%2Ccm%29%2Fmatrix%281%2C2%2C1%2Cin%29%22%D7%22matrix%281%2C2%2C1%2Cm%29%2Fmatrix%281%2C2%2C100%2Ccm%29%22%D7%22matrix%281%2C2%2C1%2Ckm%29%2Fmatrix%281%2C2%2C1000%2Cm%29

Cancel the hours

matrix%281%2C2%2C55%2Ccross%28mi%29%29%2Fmatrix%281%2C2%2C1%2Ccross%28hr%29%29%22%D7%22matrix%281%2C2%2C1%2Ccross%28hr%29%29%2Fmatrix%281%2C2%2C60%2Cmin%29%22%D7%22matrix%281%2C2%2C5280%2Cft%29%2Fmatrix%281%2C2%2C1%2Ccross%28mi%29%29%22%D7%22matrix%281%2C2%2C12%2Cin%29%2Fmatrix%281%2C2%2C1%2Cft%29%22%D7%22matrix%281%2C2%2C2.54%2Ccm%29%2Fmatrix%281%2C2%2C1%2Cin%29%22%D7%22matrix%281%2C2%2C1%2Cm%29%2Fmatrix%281%2C2%2C100%2Ccm%29%22%D7%22matrix%281%2C2%2C1%2Ckm%29%2Fmatrix%281%2C2%2C1000%2Cm%29


Cancel the feet

matrix%281%2C2%2C55%2Ccross%28mi%29%29%2Fmatrix%281%2C2%2C1%2Ccross%28hr%29%29%22%D7%22matrix%281%2C2%2C1%2Ccross%28hr%29%29%2Fmatrix%281%2C2%2C60%2Cmin%29%22%D7%22matrix%281%2C2%2C5280%2Ccross%28ft%29%29%2Fmatrix%281%2C2%2C1%2Ccross%28mi%29%29%22%D7%22matrix%281%2C2%2C12%2Cin%29%2Fmatrix%281%2C2%2C1%2Ccross%28ft%29%29%22%D7%22matrix%281%2C2%2C2.54%2Ccm%29%2Fmatrix%281%2C2%2C1%2Cin%29%22%D7%22matrix%281%2C2%2C1%2Cm%29%2Fmatrix%281%2C2%2C100%2Ccm%29%22%D7%22matrix%281%2C2%2C1%2Ckm%29%2Fmatrix%281%2C2%2C1000%2Cm%29

Cancel the inches:


matrix%281%2C2%2C55%2Ccross%28mi%29%29%2Fmatrix%281%2C2%2C1%2Ccross%28hr%29%29%22%D7%22matrix%281%2C2%2C1%2Ccross%28hr%29%29%2Fmatrix%281%2C2%2C60%2Cmin%29%22%D7%22matrix%281%2C2%2C5280%2Ccross%28ft%29%29%2Fmatrix%281%2C2%2C1%2Ccross%28mi%29%29%22%D7%22matrix%281%2C2%2C12%2Ccross%28in%29%29%2Fmatrix%281%2C2%2C1%2Ccross%28ft%29%29%22%D7%22matrix%281%2C2%2C2.54%2Ccm%29%2Fmatrix%281%2C2%2C1%2Ccross%28in%29%29%22%D7%22matrix%281%2C2%2C1%2Cm%29%2Fmatrix%281%2C2%2C100%2Ccm%29%22%D7%22matrix%281%2C2%2C1%2Ckm%29%2Fmatrix%281%2C2%2C1000%2Cm%29

Cancel the centimeters:

matrix%281%2C2%2C55%2Ccross%28mi%29%29%2Fmatrix%281%2C2%2C1%2Ccross%28hr%29%29%22%D7%22matrix%281%2C2%2C1%2Ccross%28hr%29%29%2Fmatrix%281%2C2%2C60%2Cmin%29%22%D7%22matrix%281%2C2%2C5280%2Ccross%28ft%29%29%2Fmatrix%281%2C2%2C1%2Ccross%28mi%29%29%22%D7%22matrix%281%2C2%2C12%2Ccross%28in%29%29%2Fmatrix%281%2C2%2C1%2Ccross%28ft%29%29%22%D7%22matrix%281%2C2%2C2.54%2Ccross%28cm%29%29%2Fmatrix%281%2C2%2C1%2Ccross%28in%29%29%22%D7%22matrix%281%2C2%2C1%2Cm%29%2Fmatrix%281%2C2%2C100%2Ccross%28cm%29%29%22%D7%22matrix%281%2C2%2C1%2Ckm%29%2Fmatrix%281%2C2%2C1000%2Cm%29

Cancel the meters:

matrix%281%2C2%2C55%2Ccross%28mi%29%29%2Fmatrix%281%2C2%2C1%2Ccross%28hr%29%29%22%D7%22matrix%281%2C2%2C1%2Ccross%28hr%29%29%2Fmatrix%281%2C2%2C60%2Cmin%29%22%D7%22matrix%281%2C2%2C5280%2Ccross%28ft%29%29%2Fmatrix%281%2C2%2C1%2Ccross%28mi%29%29%22%D7%22matrix%281%2C2%2C12%2Ccross%28in%29%29%2Fmatrix%281%2C2%2C1%2Ccross%28ft%29%29%22%D7%22matrix%281%2C2%2C2.54%2Ccross%28cm%29%29%2Fmatrix%281%2C2%2C1%2Ccross%28in%29%29%22%D7%22matrix%281%2C2%2C1%2Ccross%28m%29%29%2Fmatrix%281%2C2%2C100%2Ccross%28cm%29%29%22%D7%22matrix%281%2C2%2C1%2Ckm%29%2Fmatrix%281%2C2%2C1000%2Ccross%28m%29%29

matrix%281%2C1%2C55%29%2Fmatrix%281%2C1%2C1%29%22%D7%22matrix%281%2C1%2C1%29%2Fmatrix%281%2C2%2C60%2Cmin%29%22%D7%22matrix%281%2C1%2C5280%29%2Fmatrix%281%2C1%2C1%29%22%D7%22matrix%281%2C1%2C12%29%2Fmatrix%281%2C1%2C1%29%22%D7%22matrix%281%2C1%2C2.54%29%2Fmatrix%281%2C1%2C1%29%22%D7%22matrix%281%2C1%2C1%29%2Fmatrix%281%2C1%2C100%29%22%D7%22matrix%281%2C2%2C1%2Ckm%29%2Fmatrix%281%2C1%2C1000%29

Comes out to 1.475232 km/min

TIME=DISTANCE%2FRATE=+25%2F1.475232=16.04648706 minutes.

Edwin