Expensive 4478

Five liters of white wine and six liters of red wine cost 432 CZK. One liter of red wine is CZK 6, which is more expensive than one liter of white wine. Thus, we pay CZK 6 for one liter of white wine and CZK 6 for one liter of red wine.

Correct answer:

a =  36 Kc/l
b =  42 Kc/l

Step-by-step explanation:


5a+6b = 432
b = 6+a

5·a+6·b = 432
b = 6+a

5a+6b = 432
a-b = -6

Row 2 - 1/5 · Row 1 → Row 2
5a+6b = 432
-2.2b = -92.4


b = -92.4/-2.2 = 42
a = 432-6b/5 = 432-6 · 42/5 = 36

a = 36
b = 42

Our linear equations calculator calculates it.



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