View Full Version : I need a solution to this math
survivorboi
Jun 14, 2009, 10:33 AM
A man went to the store to buy three things, chicken, vegetables, and bananas. The total of his spent was $20.
Vegetables plus 9 dollars equals to the Chicken.
(Chicken plus vegetable) then minus $16 equals bananas.
How much is chicken, vegetable, and bananas each?
Remember, the total of his spent was $20.
Vegetable=V
Chicken=C
Banana=B
V+9=C
(C+V)-16=Banana
Please give me step by step on how to solve this problems. I would like to understand the problem as well as be able to solve similar problems, so please help me. Thanks!
Unknown008
Jun 14, 2009, 10:40 AM
You told us to remember that the total is $20, but you yourself forgot! :p lol.
You also have C+V+B=20.
Substitute second equation with the first one;
(V+9+V)-16=B
2V + 9 - 16 = B
2V - 7 = B
Use that in C+V+B=20;
C+V+(2V-7)=20
and C=V + 9
(V+9)+V+(2V-7)=20
Now, can you continue?
Hope it helped! :)
Maybe there's shorter way... I just did what passed in my mind.
20shasha
Jun 14, 2009, 11:25 AM
a man went to the store to buy three things, chicken, vegetables, and bananas. The total of his spent was $20.
Vegetables plus 9 dollars equals to the chicken.
(chicken plus vegetable) then minus $16 equals bananas.
How much is chicken, vegetable, and bananas each?
Remember, the total of his spent was $20.
Vegetable=v
chicken=c
banana=b
v+9=c
(c+v)-16=banana
please give me step by step on how to solve this problems. I would like to understand the problem as well as be able to solve similar problems, so please help me. Thanks!
I don't know am going to the fith grade in August sorry
Unknown008
Jun 14, 2009, 11:28 AM
Hi 20shasha! Welcome to AMHD! :) If ou don't know a question, better not post. You post only if you know, or have a suggestion, please, OK? Take time to carefully read the rules, by clicking on HELP in your blue bar near the top right corner. Thanks.
survivorboi
Jun 14, 2009, 12:14 PM
LOL, hey Unknown, I really can't continue on your post, I'm sorry, I don't understand how you can simplify it if there's so much unknown (to me anyways) variables.
This is how I got it:
(V+9)+V+(2V-7)=20
V+V+(2V-7)=20-9
V+V+(2V-7)=11
V+V+2V=11+7
V+V+2V=18
V+V+V=18/2
V+V+V=6
Now what?
Thanks!
Unknown008
Jun 15, 2009, 08:35 AM
NO!! You did a mistake... that show me that you didn't have such a solid base in maths...
Ok, x+x= 2x, right?
x+2x=3x, still right?
2x+2x=4x, do you agree?
Then, V+V+2V = ?
Now that you've found the value of V, you can find the rest easily. In the first equation; V+9=C
Since you got V, you can have C.
Having V and C, you can find B through V+B+C=20, or (C+V)-16=B. You just need to substitute in your values for V and C. Got it now? Or, do you need more details?
I hope it helped! :)
survivorboi
Jun 16, 2009, 02:19 PM
Lol, Thanks! Unknown, you will be perfect for my math tutor!
=)
Unknown008
Jun 17, 2009, 07:27 AM
LOL! :p Ask anytime! :)