Question

If X+7:2(x+14)is the duplicate ratio of 5:8,find x

Answer 1

Answer:$18$

Step-by-step explanation:

$\frac{x+7}{2(x+14)} =(\frac{5}{8})^{2}$

$\frac{(x+7)}{(2x+28)} =\frac{25}{64}$

$64(x+7)=25(2x+28)$

$64x + 448 = 50x + 700$

$64x - 50x = 700 - 448$$14x = 252$

$x = 18$