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xokatexo
Group Title
One number is 4 more than three times a smaller number. If twice the larger number is decreaased by three times the smaller number, the result is 32. Find the number. I know the answer but i need help solving it because i have a test tomorrow thanks!
 2 years ago
 2 years ago
xokatexo Group Title
One number is 4 more than three times a smaller number. If twice the larger number is decreaased by three times the smaller number, the result is 32. Find the number. I know the answer but i need help solving it because i have a test tomorrow thanks!
 2 years ago
 2 years ago

This Question is Closed

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
Okay. One number is 4 more than 3 times a smaller number. Sounds like we have two numbers. So let's set x=larger number y=smaller number.
 2 years ago

xokatexo Group TitleBest ResponseYou've already chosen the best response.1
i did x= the smaller 2x+4= the larger
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
Okay. Then x is the smaller, and 2x+4 is the larger.
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
Are you learning systems of equations? or just one variable?
 2 years ago

xokatexo Group TitleBest ResponseYou've already chosen the best response.1
we learned system of equations last year
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
Okay. I'll straight up tell you that while it might be possible to solve this with just x as a variable, it will be much less confusing to do with x and y.
 2 years ago

xokatexo Group TitleBest ResponseYou've already chosen the best response.1
okay so ill use x and y thankss
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
Alright. Now really the only reason I set x as the larger number is because it turned up first. y as the smaller number cause it turned up second.
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
We are looking for two equations that relate x and y. can you figure out the first?
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
mm. Close, but remember that x is the larger number. You should be getting 3y+4=x
 2 years ago

xokatexo Group TitleBest ResponseYou've already chosen the best response.1
wait no 2(3x+4)3x=32
 2 years ago

xokatexo Group TitleBest ResponseYou've already chosen the best response.1
ohh wait what?
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
One number is 4 more than three times a smaller number.
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
We have a number x that is 4 more than 3 times a smaller number.
 2 years ago

xokatexo Group TitleBest ResponseYou've already chosen the best response.1
ok i got that but then whats the second?
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
and the smaller number is y. so we have x is 4 more than 3 times y. or, x=4+3y in other words 3y+4=x
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
If twice the larger number is decreaased by three times the smaller number, the result is 32.
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
Replace the larger number and smaller number to what we have set them to, x and y ;) Tell me what you get...
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
Yes. Good! Now we set up the system. 3y+4=x 2x3y=32
 2 years ago

xokatexo Group TitleBest ResponseYou've already chosen the best response.1
substitution
 2 years ago

xokatexo Group TitleBest ResponseYou've already chosen the best response.1
i got 10.6 repeting
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
Can you show your work? that's not the right answer :S
 2 years ago

xokatexo Group TitleBest ResponseYou've already chosen the best response.1
@inkyvoyd 2(3y+4)3y=32 6y+83y=32 3y+8=32 8 8  3y=32   3 3 y=10.66666666666666666666666666
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
3y+8=32 catch: 3y+8=24
 2 years ago

xokatexo Group TitleBest ResponseYou've already chosen the best response.1
so x is 13:)
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
No, check again :)
 2 years ago

xokatexo Group TitleBest ResponseYou've already chosen the best response.1
3(3)+4=x 13=x
 2 years ago

xokatexo Group TitleBest ResponseYou've already chosen the best response.1
oh i get itt
 2 years ago

xokatexo Group TitleBest ResponseYou've already chosen the best response.1
thankss sooo muchh
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
yeah sorry, I made a mistake to. y=8 lol
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
http://www.wolframalpha.com/input/?i=3y%2B4%3Dx+and+2x3y%3D32
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
No problem :)
 2 years ago
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