# Math

posted by Rayray

Charlotte is training for a marathon. Right now she is 21km from home. She is running toward home at a rate of 10 km per hour.(Let x=time(in hours); y=distance from home (in km).) [lHint: Charlottle's distance from home is decreasing.]

1. Reiny

There is no question in your post.

Do you want the equation for the distance she is from home?

then

y = -10x + 21 , where x and y are as defined

2. rayray

can u help me put it in a table format

## Similar Questions

1. ### math

How do you solve these types of problems.?
2. ### math

your family is driving to houston,texas.A sign indicates that you are 700 miles from houston.Your car's trip odometer indicates you are 400 miles from home.YOu are traveling at an average speed of 60 miles per hour. A. write an expression …
3. ### math

Distance Traveled An athlete is 16 miles from home, running toward home at 6 miles per hour. (a) Write a formula that calculates the distance D that the athlete is from home after x hours. (b) Determine D when x = 1.5 hours. (c) Find …
4. ### math

Over the river and through the woods to grandpa's house the smith grandchildren go. They drive 120miles to reach grandpa's house and the same distance back home. 1) It took 1.2hours to get halfway there. What is their average speed, …
5. ### Math

Alex's distance form home is represented by the equation D= -0.5t +300 D represents his distance from home and t represents time in minutes How long will it take Alex to reach a distance of 182 km from home
6. ### algebra

A car traveling on a highway is 60 miles away from home after 1 hour, and is 300 miles away from home after 5 hours. What is the rate of change of the car’s distance over time?
7. ### Math

Al and Bill live at opposite ends of the same street. Al had to deliver a parcel to Bill’s home, Bill one at Al’s home. They started at the same moment, each walked at constant speed and returned home immediately after leaving …