Solved ~ thanks so much!

[DisneyMomma81]

New problem ~
There is a total of 130 L of water in Containers A, B and C. There is 12 L more water in Container A than B. There is 8 L less water in Container C than A. How many liters of water are there in Container A?


Solved ~
I feel stupid but I cannot figure this out to help DS.

Any advice....

Here's the problem -

Kylie has thrice as many cards as Ryan. How many cards must Kylie give Ryan so that they will have 128 cards each?

I don't have any clue how to work it!

 

[victorandbellasmom]

I love math problems. Since they need to have 128 each total cards must be 256. If Ryan = x, then kylie must have 3x. So X + 3X = 256, so x = 64. Ryan has 64 and Kylie has 192, so Kyie must give Ryan 64 cards.

 

[hambirg]

You add 128+128=256 (because that has to be the total of cards).

Then 256/4 (so it can be divided into 4 parts where Kylie has 3 parts and Ryan has 1 part)

1 part=256/4=64

Ryan has 64
Kylie has 192



ETA. . PP beat me too it. Lol

 

[clh2]

There are 256 cards. We know this because at the end - each will have 128 cards. (128 x 2 = 256)

If kyle starts off with 3 times the number of cards than Ryan has - the equation will be:

3x + x = 256, where 3x= kyle's cards and the x = ryans cards

4x = 256

x = 64

So ryan starts off with 64 cards, and kyle has 3* 64 cards = 192 cards

So - 192 - 128 = 64 cards that kyle needs to give Ryan.

 

[DisneyMomma81]

Thanks all ~ we called his dad and he helped us. You all made perfect sense!

 

[DisneyMomma81]

Bump ~ are you still around ?ladies? my boy's gotta get to bed!

 

[hambirg]

Bump ~ are you still around ?ladies? my boy's gotta get to bed!

You have more problems? I'm still here.

ETA-woops I didn't see that you added the new problem to the original post, but it looks like you got the answer.

 

[victorandbellasmom]

New problem ~
There is a total of 130 L of water in Containers A, B and C. There is 12 L more water in Container A than B. There is 8 L less water in Container C than A. How many liters of water are there in Container A?

Cont A = 12+X
COnt B = X
Cont C = 12+x -8
A+B+C= 130
12+x+x+12+x-8=130
24-8+3x=130
16+3x=130
3x=114
x=38
Cont A = 12+38 = 50L

 

[DisneyMomma81]

Cont A = 12+X
COnt B = X
Cont C = 12+x -8
A+B+C= 130
12+x+x+12+x-8=130
24-8+3x=130
16+3x=130
3x=114
x=38
Cont A = 12+38 = 50L

Thanks so much ~ I need to retake an algebra class! I had to re teach myself long division last year

He's in 5th grade ~ does this seem a bit advanced?? It's a math system from Singapore....