If 5a = 3125, then the value of 5(a - 3) is:
25
125
625
1625
Explanation:
5a = 3125 $\Leftrightarrow$ 5a = 55
$\Rightarrow$ a = 5.
therefore, 5(a - 3) = 5(5 - 3) = 52 = 25.
5a = 3125 $\Leftrightarrow$ 5a = 55
$\Rightarrow$ a = 5.
therefore, 5(a - 3) = 5(5 - 3) = 52 = 25.