21,000=d (1+0.005)^36 −1)/0.005
To solve this equation for d, we need to first simplify the expression on the right side:
21,000 = d((1+0.005)^36 - 1)/0.005
21,000 = d((1.005)^36 - 1)/0.005
21,000 = d(1.210379 - 1)/0.005
21,000 = d(0.210379)/0.005
21,000 = 42.075738d
Now we can solve for d by dividing both sides by 42.075738:
d = 21,000 / 42.075738
d ≈ 499.78
Therefore, the value of d is approximately 499.78.