Question

If ( 28-x) is the mean proportional of (23-x) AND (19- x ), then what is the value of x​

Answer 1

Answer:

x=347/14

Step-by-step explanation:

(23-x) : (28-x) : (19-x)

(23-x)/(28-x) = (28-x)/(19-x)

(23-x+28-x)/(23-x-28+x) = (28-x+19-x)/(28-x-19+x)

(51-2x)/-5 = (47-2x)/9

459-18x = -235+10x

28x = 694

x = 347/14