SOLUTION: I have to come up with my own system of equations with two variables (x,y). I am starting with a word problem first. I drive 10 miles to school and 10 miles back. I go to school

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: I have to come up with my own system of equations with two variables (x,y). I am starting with a word problem first. I drive 10 miles to school and 10 miles back. I go to school      Log On


   

Question 217067: I have to come up with my own system of equations with two variables (x,y). I am starting with a word problem first.
I drive 10 miles to school and 10 miles back. I go to school 4 days a week and gas costs $2.49. How many miles and how much gas do I use in one week?
I hope you can help me solve this. I made it up and I hope it works. I also need to graph the problem after it has been solved. Thanks
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
I drive 10 miles to school and 10 miles back. I go to school 4 days a week and gas costs $2.49. How many miles and how much gas do I use in one week?
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You've made a good start.
What are the miles per gallon of your car?
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miles will be 20 miles*4 = 80 miles
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amt. of gas depends on your miles per gallon
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I suggest you look at some of the worked problems
available in this site. There are many good
examples listed.
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Cheers,
Stan H.