Răspuns:
Explicație pas cu pas:
a) ³⁾3/4 = x /y <=> 9/12 = x/y => x = 9 ; y = 12
b) 72/80⁽⁸ = x/y <=> 9/10 = x/y => x = 9 ; y = 10
c) ²⁾x/3 = 8/y <=> 2x/6 = 8/y => x = 4 ; y = 6
d) ˣ⁾3/y = 12/28 <=> 3x/xy = 12/28 => 3x = 12 => x = 12:3 => x = 4
=> xy = 28 => 4y = 28 => y = 28:4 => y = 7
e) 24/x⁽ʸ = 4/5 <=> 24y/xy = 4/5 => 24y = 4 => y = 4/24 => y = 1/6
xy = 5 => x/6 = 5 => x = 6·5 => x = 30
f) x/18⁽ʸ = 5/6 <=> xy/18y = 5/6 =>
18y = 6 => y = 6/18 => y = 1/3
xy = 5 <=> x/3 = 5 => x = 3·5 => x = 15
#copaceibrainly
