02. Descubra o valor de X:
a)4/5+ X/5 = 9/5
b)7/6+ X/3 = 9/6
c)5/8 × X/5 = 30/40
d) 2/4 ÷ X/7 = 14/20
e) (X/5)² = (81/25)
bruninhanunes7874:
b) 7/6 + 2/6= 9/6; 7/6 + 1/3= 9/6 (x = 1)
Respostas
respondido por:
84
a) 4/5 + x/5= 9/5
4/5 + 5/5= 9/5
x= 5/5
c) 5/8 . x/5= 30/40
5/8 . 6/5= 30/40
x= 6
d) 2/4 : x/7= 14/20
2/4 : 5/7= 14/20
x= 5
e) (x/5)²= 81/25
(9/5)² = 81/25
x= 9
respondido por:
10
a) 4/5 + x/5= 9/5
4/5 + 5/5= 9/5
x= 5/5
c) 5/8 . x/5= 30/40
5/8 . 6/5= 30/40
x= 6
d) 2/4 : x/7= 14/20
2/4 : 5/7= 14/20
x= 5
e) (x/5)²= 81/25
(9/5)² = 81/25
x= 9
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