Yo sup??
this question can be solved by applying trigonometric ratios
let the angle W be x, then
cosx=5/7
x=44.4
Hope this helps
Let's assign some random values to it, and say 1 unit of petroleum costs 100 bitcoins, because we all know bitcoins are the best currency :P
If the price goes up by 10%, it is now 100*1.1 = 110bitcoins for 1 unit.
However he's only getting 0.9 units now, so multiplying 110 by 0.9 gives us 99 bitcoins. His petroleum bill used to be 100 (which is why I picked 100 as it's easier), and now it is 99. Therefore his petroleum bill has reduced by 1%
Answer:
x = 3
Step-by-step explanation:

I'm going to use the method of elimination by multiplying the second equation by -3:

Then I can eliminate x:
-32y = -64
To solve for y, I'd simply divide:
y = 2
Because I now have y = 2, I'll just plug in 2:
6x - 5(2) = 8
6x - 10 = 8
6x = 18
x = 3
Hopefully I helped :)
it was fine, thanks for asking. how was your day?
thanks for the points btw :)