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Jamie is going to run for of an hour at a constant rate, and they want to plan what that rate will be.

1. Write an equation that represents the distance Jamie will run in kilometers (d) at a rate of r kilometers
per hour.

2.How far will Jamie run
if they choose a rate of 8 kilometers per hour?

Jamie is going to run for of an hour at a constant rate and they want to plan what that rate will be 1 Write an equation that represents the distance Jamie wil class=

Respuesta :

Eduard22sly

1. The equation that represents distance Jamie will run in kilometers (d) at a rate of r kilometers per hour is d = 0.5r

2. The distance Jamie will run if he chooses a rate of 8 kilometers per hour is 4 Km

What is speed?

Speed is the distance travelled per unit. Mathematically, it can be expressed as:

Speed = distance / time

with the above formula, we give the various answers to questions. Details below

1. How to determine the equation

  • Time = 1/2 = 0.5 hour
  • Speed = r Km/h
  • Distance = d Km
  • Equation for the distance travelled =?

Speed = distance / time

r = d / 0.5

Cross multiply

d = r × 0.5

d = 0.5r

Thus, the equation to determine the distance travelled is d = 0.5r

How to determine the distance travelled

Using the equation d = 0.5r, we can determine the distance travelled at a rate of 8 Km/h as illustrated below:

  • Time = 1/2 = 0.5 hour
  • Speed (r) = 8 Km/h
  • Distance (d) = ?

d = 0.5r

d = 0.5 × 8

d = 4 Km

Thus, the distance travelled at a rate of 8 Km/h in 1/2 hour is 4 km

Learn more about speed:

https://brainly.com/question/680492

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