Maths homework

[Jacksgranda]

8 minutes ago, mathematics said:

Let x be total number of roses

let w be total number of white roses

let r be total number of red roses

(1) 0.8x = w and

(2) 0.2x = r

(3) w +76 = 0.75(x+76+48)

(4) r+48 = 0.25(x+76+48)

chuck equation 1 into 3, or 2 into 4, then solve for x

 

I couldn't do stuff like that when I was in secondary school never mind P6. 

[mathematics]

Primary kids won’t be doing algebra like that yet, so your son is excused for not understanding it.

you, on the other hand..:

[mathematics]

Just realised the OP’s son is 10. That’s still primary isn’t it?

[Miguel Sanchez]

13 minutes ago, mathematics said:

Let x be total number of roses

let w be total number of white roses

let r be total number of red roses

(1) 0.8x = w and

(2) 0.2x = r

(3) w +76 = 0.75(x+76+48)

(4) r+48 = 0.25(x+76+48)

chuck equation 1 into 3, or 2 into 4, then solve for x

 

ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ

[Shotgun]

Just the other day, I read about an experiment where folk who were good at algebra, were than asked to solve some simple equations but rather than using the traditional x, y & z or a, b & c, they were given different letters such as f, l, g and so on. They all reported finding it much, much harder.

Conclusion: Algebra is a shite way to learn.

[Dan Steele]

[Shotgun]

4 minutes ago, Jacksgranda said:

I couldn't do stuff like that when I was in secondary school never mind P6. 

It would take me a while to figure out how to do this with a spreadsheet and I consider myself quite good at those.

[RH33]

3 minutes ago, mathematics said:

Just realised the OP’s son is 10. That’s still primary isn’t it?

Yup P6

[Arnold Layne]

12 minutes ago, mathematics said:

Let x be total number of roses

let w be total number of white roses

let r be total number of red roses

(1) 0.8x = w and

(2) 0.2x = r

(3) w +76 = 0.75(x+76+48)

(4) r+48 = 0.25(x+76+48)

chuck equation 1 into 3, or 2 into 4, then solve for x

 

Thanks. Surprised to see this as P7 homework.

[Fullerene]

25 minutes ago, Tony Ferrino said:

Why would any fucker have that many roses?

I suspect it is actually bottles of wine.

[mathematics]

1 minute ago, Shotgun said:

Just the other day, I read about an experiment where folk who were good at algebra, were than asked to solve some simple equations but rather than using the traditional x, y & z or a, b & c, they were given different letters such as f, l, g and so on. They all reported finding it much, much harder.

Conclusion: Algebra is a shite way to learn.

I see a flaw in that logic: they weren’t actually good at algebra.

[mathematics]

1 minute ago, Arnold Layne said:

Thanks. Surprised to see this as P7 homework.

There will be an easier way to do it. 

[Shotgun]

Just now, mathematics said:

There will be an easier way to do it. 

Sure there is. Ask your Dad to ask his mates on the Internet. Simples.

[Bairnardo]

Good time to begin a discussion on the utter futility of existence IMO. 
What's the fucking point?

Let x be total number of roses
let w be total number of white roses
let r be total number of red roses
(1) 0.8x = w and
(2) 0.2x = r
(3) w +76 = 0.75(x+76+48)
(4) r+48 = 0.25(x+76+48)
chuck equation 1 into 3, or 2 into 4, then solve for x
 

Like I said...

[coprolite]

You need to find the lowest common denominator, so you're in the right place

[Sergeant Wilson]

1 minute ago, coprolite said:

You need to find the lowest common denominator, so you're in the right place

I think it's more to do with pie.

[Fullerene]

13 minutes ago, Shotgun said:

Just the other day, I read about an experiment where folk who were good at algebra, were than asked to solve some simple equations but rather than using the traditional x, y & z or a, b & c, they were given different letters such as f, l, g and so on. They all reported finding it much, much harder.

Conclusion: Algebra is a shite way to learn.

Don't be daft.

Let x = f, y = l and z = g.

Then write out the solutions that you already know.

[Shotgun]

6 minutes ago, Fullerene said:

Don't be daft.

I can't find the article I read now. Maybe I just dreamt it one of my recurring school anxiety dreams. As you were.

(Algebra's still shite though)

[Guest bernardblack]

Kanu

[welshbairn]

57 minutes ago, Arnold Layne said:

My ten year old has this problem to solve

I have X roses. 80% are white, the rest are red. I add 76 white and 48 red. Now 75% are white. What is the value of X?

I have worked out the answer using a spreadsheet but he needs to show workings.

Any ideas?

If you worked out what to tell a spreadsheet to do, surely you could do the same for a ten year old boy?