Question

What value of d makes the equation true 2/9=d/27

Answer 1

2/9 = d / 27
cross multiply
(9)(d) = (27)(2)
9d = 54
d = 54/9
d = 6 <==

Answer 2

To do this, you will have to cross multiply the proportion.
2/9=d/27 (Original)
2*27=9*d (Cross multiply)
54=9d (Simplify)
d=6 (Divide by 9)
The answer is d=6.