Maths - can't for the life of me figure this one out

Step 1 - it's maths not math.

Step 2 - substitute x = 0.62y into 1.62x -y = 0

=> 1.62.(0.62y) - y = 0

I'm sure you can take it from there ;).
 
All you end up with is x=x or y=y (or close enough, it's obviously been rounded to 2 s.f.).

If you graph them both, they're basically the same line:
y = 1.62x
y = (1/0.62)x

So your values would be along that line somewhere, I guess? Not sure what you mean by "Need a pair of values from the set of values for x and y."

x=1, y=1.62?
x=2, y=3.24?
 
Last edited:
sara said:
All you end up with is x=x or y=y (or close enough, it's obviously been rounded to 2 s.f.).

If you graph them both, they're basically the same line:
y = 1.62x
y = (1/0.62)x

So your values would be along that line somewhere, I guess? Not sure what you mean by "Need a pair of values from the set of values for x and y."

x=1, y=1.62?
x=2, y=3.24?
Click to expand...



...No? What have you done to maths?! :eek:
 
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