Liters 7869

There are a total of 1309 liters of oil in the two tanks. In the second, there are 4.5 times more than in the first. How many liters of oil is in each tank?

Correct answer:

a =  238
b =  1071

Step-by-step explanation:


a+b = 1309
b = 4.5 · a

a+b = 1309
4.5a-b = 0

Pivot: Row 1 ↔ Row 2
4.5a-b = 0
a+b = 1309

Row 2 - 1/4.5 · Row 1 → Row 2
4.5a-b = 0
1.22b = 1309


b = 1309/1.22222222 = 1071
a = 0+b/4.5 = 0+1071/4.5 = 238

a = 238
b = 1071

Our linear equations calculator calculates it.



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