Francisco E. answered • 06/15/14

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Francisco; Civil Engineering, Math., Science, Spanish, Computers.

Also and as an addition, it can be solved following the steps:

X + Y = 180 X= Kenyan Coffee Y = Turkish Coffee

12X + 16Y = 180*13

to eliminate X multiply by -12 the first equation and add to the second to obtain:

-12X - 12Y = -12*180

adding to the second equation we obtain

4Y = 180(13-12)=180

Y= 45 kg of Turkish Coffee

180-45 = 135 kg of Kenyan Coffee

Check!!!!!!!!!!!!!!!!!!!!!!!!!!!!!