Question

Va rog cine ma ajuta dau 100 puncte răspunsuri corecte raspusuri scrise la panarama raport ​

Answer 1

Răspuns:

6 kg mere.......48 lei

9 kg mere.........x

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x=48·9:6=72 lei costa 9 kg de mere

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4kg mere........5 kg pere ......35 lei I·3

7 kg mere.......3kg pere..........44 lei I·5

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35kg mere.......15kg pere.......220lei

12kg mere.......15kg pere.......105lei

23m=115=>m=115:23=>m=5 lei kg de mere

20m+5p=35=>5p=25-20=>p=15:5=>p=3 lei kg de pere

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t+m+f=90

m=3f

t=m+6

t=m+6=3f+6      

3f+6+3f+f=90        

7f=84=>f=12 ani are fiica

m=3f=3·12=36 are mama

t=36+6=42  ani are tata    

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[(a·2+10):4]+5=15

(2a+10):4=15-5

2a+10=10·4

2a=40-10

a=30:2=>a=15

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a+b=15 =>a=15-b

2a+5b=60

2(15-b)+5b=60

30-2b+5b=60

3b=60-30

b=30:3=>b=10 vase de 5 l

a=15-10=>a=5 vase de 2 l