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Mathematics 7 Online
OpenStudy (helpblahblahblah):

IL GIVE MEDALS: please explain: Yesterday, Ken drove forty-two miles in his car. The trip used 3 gallons of gasoline. How many miles can Ken drive today before needing more gasoline if he has 2 more gallons in the tank? Let m equal miles. m equals what number?

OpenStudy (mertsj):

How many miles did he get on each gallon of gas he used yesterday?

OpenStudy (helpblahblahblah):

14?

OpenStudy (mertsj):

Do you suppose that will be the same today?

OpenStudy (helpblahblahblah):

nooo?

OpenStudy (mertsj):

Why? Did he trade cars or something?

OpenStudy (helpblahblahblah):

ummmm no

OpenStudy (mertsj):

Well then, think. If his cars goes 14 miles on 1 gallon of gas yesterday, it will go 14 miles on 1 gallon of gas today, don't you think?

OpenStudy (helpblahblahblah):

yes

OpenStudy (mertsj):

So if his car goes 14 miles on 1 gallon of gas and he has 2 gallons of gas, how far can he go?

OpenStudy (helpblahblahblah):

28?

OpenStudy (mertsj):

Yes. M = 14(2)=28

OpenStudy (helpblahblahblah):

thanks soo much!1 :D

OpenStudy (mertsj):

yw

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