Question

me ajude nessas questoes pf 7,9,11,13 e 15

Answer 1

x=2,4x5 =12
y/16=4/10
y=6,4

x+y=18,4

9)y/x
y/5=14/10
y=7

2x=7
x=3,5

y/x = 7/3,5 = 2

11)14/1,96 =3,2/x
14. 14/ 1,96 . 14 =3,2/x
100/14=3,2/x
x=0,448 metros

13)x/4,8=1,8/1,2
x=4,8 +2,4
x=7,2 metros

15)4/10=rs/8
rs=3,2

4/10=ps/4
ps=1,6