one number is three times another. the sum of the reciprocal is 4. what are the two numbers?
Answers
Answered by
1
Step-by-step explanation:
let x and y are real numbers
y= 3x---------(1)
and sum of reciprocal is 4
1/x + 1/y =4
x+y/xy =4
put the value of y from eq (1)
x+ 3x / x(3x) = 4
4x/3x^2 =4
4x = 12 x^2
4= 12 x
x= 4/12 =1/3
therefore , x= 1/3
now put the value of x in eq(1)
y= 3x
y =3(1/3)
y= 1
hence the numbers is 1/3 and 1
Similar questions