Preparing the mixture

The seller prepared 25 kg of a mixture priced at 264 CZK per kg. The first type cost 180 CZK per kg and the second 390 CZK per kg. How much of each did he need?

Final Answer:

a =  15 kg
b =  10 kg

Step-by-step explanation:

m=25 kg m = a+b c=264 CZK/kg  c1=180 CZK/kg c2=390 CZK/kg  a+b=m c1 a+c2 b=c m a+b=25 180 a+390 b=264 25  180a+390b=6600  Pivot:Row1Row2  Row21801 Row1Row2 1.17b=11.67  b=1.1666666711.66666667=10 a=1806600390b=1806600390 10=15=15 kg  a=15 b=10



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