Consumption 4345

The locomotive consumes 22 kg of coal when climbing. It consumes 10 kg when descending and driving on a flat surface. The line is 62 km long, and coal consumption on this line was 800 kg. How many km of the climb was there on the track?

Correct answer:

a =  15 km

Step-by-step explanation:


22a+10b = 800
a+b = 62

22·a+10·b = 800
a+b = 62

22a+10b = 800
a+b = 62

Row 2 - 1/22 · Row 1 → Row 2
22a+10b = 800
0.55b = 25.64


b = 25.63636364/0.54545455 = 47
a = 800-10b/22 = 800-10 · 47/22 = 15

a = 15
b = 47

Our linear equations calculator calculates it.



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