Question

determine o valor de x:a) 3/5.x=1 b)4/7.x=1c)0,75.x=1d)2,5.x=1

Answer 1

A- 3/5 * x/1 = 1
3x/5 = 1/1
3x= 5
x= 5/3

B- 4/7 * X/1 = 1
4X/7 = 1/1
4X= 7
X= 7/4

C- 0,75 = 3/4, Então:
3/4 *x = 1
3x/4 = 1/1
3x = 4
x= 4/3

D- 2,5 = 1/4, Então:
1/4*X = 1
X/4 =1/1
X= 4/1