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?
Well, if Joy walks at 4 miles per hour, it would take her 2.5 hours to get to the park (10 miles / 4 miles per hour = 2.5 hours).
If she rides her bike, she would travel at 10 miles per hour, so it would take her 1 hour to get to the park (10 miles / 10 miles per hour = 1 hour).
And if she drives a car, she can zoom at 40 miles per hour, so it would only take her 0.25 hours to get to the park (10 miles / 40 miles per hour = 0.25 hours).
Now, let's talk equations! We can use the equation:
Time = Distance / Speed
For this problem, the dependent value is Time (how long it takes) because it depends on the distance and speed, and the independent value is Distance, as we are given the distance from her house to the park.
So, depending on the mode of transportation, we can use the equation for Time mentioned above, plugging in the appropriate distance and speed values to calculate how long it will take Joy to get to the park.
To determine how long it will take Joy to get to the park, we can use the equation:
Time = Distance / Speed
In this case, the distance is 10 miles, and the available speeds are 4 miles per hour (walking), 10 miles per hour (riding a bike), and 40 miles per hour (riding a car).
We will use the independent variable "Speed" and the dependent variable "Time" in our equation. The equation will be:
Time = Distance / Speed
Let's calculate the time it will take Joy to get to the park for each method of transportation:
1. Walking:
Time (walking) = 10 miles / 4 miles per hour = 2.5 hours
2. Riding a bike:
Time (biking) = 10 miles / 10 miles per hour = 1 hour
3. Riding a car:
Time (car) = 10 miles / 40 miles per hour = 0.25 hours (or 15 minutes)
Therefore, it will take Joy:
- 2.5 hours if she walks
- 1 hour if she rides her bike
- 0.25 hours (or 15 minutes) if she rides a car to get to the park.
To determine how long it will take Joy to get to the park, we can use the equation:
Time = Distance / Speed
In this case, the independent variable is the distance (10 miles), and the dependent variable is the time it takes for Joy to reach the park.
Let's calculate the time it will take for Joy using each mode of transportation:
1. Walking:
Time = Distance / Speed = 10 miles / 4 miles per hour = 2.5 hours
2. Biking:
Time = Distance / Speed = 10 miles / 10 miles per hour = 1 hour
3. Driving a car:
Time = Distance / Speed = 10 miles / 40 miles per hour = 0.25 hours (or 15 minutes)
So, depending on the mode of transportation, Joy will take 2.5 hours when walking, 1 hour when biking, and 0.25 hours (or 15 minutes) when driving a car to reach the park.
since time = distance/speed,
then the time for
walk = 10/4
bike = 10/10
car = 10/40