Question

va rog,am nevoie urgent.................​

Answer 1

Răspuns:

a)->4)

x/10 = 3/15 =>x=(10•3)/15 =>x=2

b)->3)

5/35 = 6/y =>y=(35•6)/5 =>y=42

Explicație pas cu pas:

c)->1)

2•5 = x•2 => x=5

d)->5)

15•8=20•y =>y=(15•8)/20 =>y=6

Answer 2

Răspuns:

a) x/10=3/15

15x=3*10

15x=30

X=30:15

X=2

b)

5/35=6/y

5y=36*6

5y=210

y=210:5

Y=42

c)

2*5=x*2

2x=10

x=10:2

X=5

d)

15*8=20*y

120=20*y

Y=120:20

Y=6

e pas cu pas: