Question

URGENT . PROBLEMA 10 SI 12 REZOLVATE PRIN METODA COMPARATIEI

Answer 1

c=caciuli

f=fulare

14 c + 10 f=618 lei

7 c + 24 f= 632 lei | x2

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14 c+10 f=618 lei

14 c + 48 f =1264 lei

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              38 f = 646 lei

 1 f = 646:38=17 lei

5 f= 17x5=85 lei

14 c + 170 lei= 618 lei

14 c = 618-170=448lei

1 c = 448:14=32 lei

5 c = 32x5=160lei

R:  5 c + 5 f = 85+160=245 lei

12. c= cornuri

p = paine

3 c + 5 p = 2300 g    | x2

4 c + 2 p = 1200 g    | x5

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6 c + 10 p = 4600 g

20 c + 10 p = 6000 g

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14 c = 1400g

1 c= 1400:14=100 g

4x100 + 2 p = 1200 g

400 + 2 p = 1200

2 p = 1200-400 = 800

1 p = 800:2 = 400 g

R:1 c + 1 p = 100 +400 = 500 g