Question

решите пожалуйста номер 1!!!!

Answer 1

a) 14.7/x=3.36/0.8

14.7/x=4.2

x=14.7/4.2

x=3.5

б) b=(4.5*3целых5/9)/12/5

b=20/3

в) 8.72/21.8=0.38/y

8.72y=21.8*0.38

8.72y=8.284

y=8.284/8.72

y= 0.95

г) 0.3/1.125=a/5.4

0.3*5.4=1.125a

1.125a=1.62

a=1.62/1.125

a=1.44