Heffernan 06 q 9 in trig

[Martoman]

Just wondering why can't we just go:

2/4 = 0.5 then 6/2 = 3 done.

heffernan go through this whooolleee long winded shizz is what i've done magically right or just a shorter way?

[kenhung123]

did you do 2/4=x/6 so x=3? I did that too

[letsride]

haven't seen the question, but it depends on what logic you're using. We all know you're Godlike at math =P, and the question is would further kids who have never done anything beyond general math be able to apply your logic? or is it beyond them.
saying that, it seems very unlikely.

could you possible post/write the question aswell? -edit- you just did haha

maybe the mark allocation? ie if its 2/3 marks => working out

-edit-
...that's pretty basic, dunno why hef would go thru alot more than needed. maybe students would struggle to understand ratio's? i dunno, you're right anyway ands its multi choice.

[Martoman]

did you do 2/4=x/6 so x=3? I did that too

Err well I do it more by *observing the change*. The change is a reduction in 2 so a scale factor change of 2 so the other way is 1/2 then 6/2 = 3. It is exactly the same method but I don't write down a ratio.

haven't seen the question, but it depends on what logic you're using. We all know you're Godlike at math =P, and the question is would further kids who have never done anything beyond general math be able to apply your logic? or is it beyond them.
saying that, it seems very unlikely.

could you possible post/write the question aswell? -edit- you just did haha

maybe the mark allocation? ie if its 2/3 marks => working out

  lollllll no this is simple ratios not beyond furtherians.


A better question Ken is to say that the distance BA is 3. Find AV.

[kenhung123]

Haha yea that would make it more challenging. Especially if it was the volume instead

[letsride]

^ haha yea just edited my post again, ratio's is the quickest and simplest way of finding the length AV, lmao don't understand the reasoning to make it more than it is haha