Question

2, 3 si 4.
Va rog, urgent, dau coronița!

Answer 1

2.    2/3*60min= 40

  4/10*60min= 24

  3/5*60min = 36

  5/6*60min= 50

  3/4*60min= 45

3.    5/8*48= 30

5/8*24= 15

5/8*104= 65

5/8*352= 220

 

4.    2/7*x=18

2x=126/:2

x=63

Answer 2

2)a) 2/3•60=120/3=40 min
b)4/10•60=240/10=24 min
c)3/5•60=180/5=36 min
d)5/6•60=300/6=50 min
e)3/4•60=180/4=45 min

3)a)5/8•48=5•48/8=240/8=30
b)5/8•24=120/8=15
c)5/8•104=520/8=65
d)5/8•352=1760/8=220

4)2/7 din x=18
2/7•x=18
2x/7=18
2x=126
x=63