Joy has to get from her house to the park,which is 10 miles away.If she walks,she can go 4 miles per hour.If she rides her bike,she can go 10 miles per hour.And, if she rides a car she can travel 40 miles per hour.How long will it take her to get to the park? What equation will you use?And which dependent and independent value will you use?

Answer 1

since time = distance/speed,
then the time for

walk = 10/4
bike = 10/10
car = 10/40