Question

if c is inversely proposal to d and c=18 when d=2/3. find the value of d when c=6/7​

Answer 1

Step-by-step explanation:

$c \alpha \frac{1}{d} \\ k = cd \\ k = 18 \times \frac{2}{3} \\ k = 12$

Now to find value of d

$12 = \frac{6}{7} \times d \\ 12 \times \frac{7}{6} = d \\ d = 14$