A store mixes Kenyan Coffee worth $10 per kilogram and Turkish coffee worth $14 per kilogram. The mixture is to sell for $11 per kilogram. Find how much of each should be used to make a 204-kilogram mixture.
x + y = 204 10x + 14y = 11(204)
so solve for x and y?
of course
am i multiplying the whole equation by 204 or just 11?
you multiply 11*204
ok that is what i thought.
11 x 204 = 11*204 = 11(204)
It's all the same
2244... ok moving on lol
so 10x+14y=2244... now i divide or what?
no, you solve the first equation for y, then substitute
y = 204 - x
oh ok...
?? Did you give up?
no i was just trying to solve some other problems and get them done
x + y = 204 10x + 14y = 2244 y = 204 - x 10x + 14(204 - x) = 2244 10x + 2856 - 14x = 2244 -4x + 2856 = 2244 4x = 612 x = 612/4 x = 153 y = 204 - 153 = 51 (153,51)
GENIUS!!!!!!!!!!!!!!!!!!!!! how do you do it that quick?
It's basic algebra
sorry i am just really terrible at math it is just not my subject but i am amazing at english on the other hand
So am I
Amazing at english or terrible at math.
You should really check out the ixl.com site
I'm good at math and English
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