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Mathematics 17 Online
OpenStudy (anonymous):

What is the value of time, t, for the given value of distance, d, and rate, r d=198km, r=36km/h A. 7128 km B. 7128 h C. 5.5 km D. 5.5 h

OpenStudy (anonymous):

@johnweldon1993 @jim_thompson5910 @john77790

OpenStudy (xapproachesinfinity):

36 km = 1 hour 198=x x=198/36

jimthompson5910 (jim_thompson5910):

\[\Large \text{distance} = \text{speed} * \text{time}\] divide both sides by "speed" to solve for "time" \[\Large \text{time} = \frac{\text{distance}}{\text{speed}}\]

OpenStudy (xapproachesinfinity):

speed is r if you are confused

OpenStudy (anonymous):

Iknow the answer would be 5.5 but not sure if it is c or d

jimthompson5910 (jim_thompson5910):

yes, r = rate = speed rate and speed are interchangeable

OpenStudy (xapproachesinfinity):

well r was km/h so it has to be hours

OpenStudy (xapproachesinfinity):

km cancels

OpenStudy (xapproachesinfinity):

you have km/km/h so km disappears leaving only h

OpenStudy (anonymous):

So the answer would be d

OpenStudy (xapproachesinfinity):

and at any rate, time is never km it always something that indicates time like seconds , min , hours

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