Question

cine ma ajuta la acest exercitile 4,5si 6 primeste 20 de inimi si coroana !!!va implor!!am nevoie de ajutor!!!îmi da nota​

Answer 1

ex 4)

a)

x/3=y=4=z/6=k

x=3k

y=4k

z=6k

6k-4k+3k=10

5k=10=>k=2

x=3k=3•2=6

y=4k=4•2=8

z=6k=6•2=12

b)

x/3=y/4=z/6=k

x=3k

y=4k

z=6k

3x+4y-6z=4

1k=4=>k=4

x=3•4=12

y=4•4=16

z=6•4=24

c)

il faci la fel ca cele de mai sus,daca nu știi ți-l voi face in comentarii

5)

a)

(a,b,c)-->direct prop(4,5,6)

a=4k

b=5k

c=6k

4k+5k+6k=60

15k=60=>k=4=>a=4•4=16.

b=5•4=20

c=6•4=24

b)

(a,b,c)-->direct prop(4,5,6)

a=4k

b=5k

c=6k

4k+5k+6k=75

15k=75=>k=5

a=4•5=20

b=5•5=25

c=6•5=30

c)

a,b,c)-->direct prop(4,5,6)

a=4k

b=5k

c=6k

4k+5k+6k=90

15k=90=>k=6

a=4•6=24

b=5•6=30

c=6•6=36