Question

Ex 10 va rog dau coroana

Answer 1

Răspuns:

x=k/4

y=k/5

z=k/6

t=k/10

2(x+y) - 5z + t = 10

2(k/4+k/5) - 5*k/6 +k/10 = 10

k/2+2k/5-5k/6+k/10=10

15k+12k-25k+3k=300

5k=300

k=60

x=k/4=60/4=15

y=k/5=60/5=12

z=k/6=60/6=10

t=k/10=60/10=6

Explicație pas cu pas:

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