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In reducing ones speed from 70mph to 50 mph how much of a percentage decrease in stopping distance is realized

Respuesta :

wegnerkolmp2741o

Answer:

28.57142857% decrease

Step-by-step explanation:

To find the percentage decrease in speed, take the original speed minus the new speed over the original speed.  Then multiply by 100%

original speed = 70   new speed =50

percent decrease = (70-50)/70 *100%

                              = 20/70 *100%

                              =28.57142857%

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