Question

Determinați numărul real x ≥ 0 din proporțiile:
a) x/16=4/x
b) 4/x=x/9
c) x/5=3/x
d) 2,5/x=x/8
e) x/2√5=√45/x
f)x/2•3/4=11/x ​

Answer 1

Răspuns:

a) x/16=4/x

X= 8

b) 4/x=x/9

X=6

c) x/5=3/x

X= √15

d) 2,5/x=x/8

X= 2 √ 5

e) x/2√5=√45/x

X= √ 30

f)x/2•3/4=11/x 

X= 5,5