Answer:
C) x=1
Step-by-step explanation:
The given equation is :
6^2x-3 = 6^-2x+1
In such type of equations where the base value is same on both the sides of the equation we can directly equate their powers. As on both the sides the base value is same i.e 6.
So, equating the power of 6
By solving the equation we get x=1.
Let the number be x.
40% of the number is =
20% of 40% of the number is =
=
Given 20% of 40% of the number x is 10 greater than half the number x.
Half the number x =
So we can write the equation as ,
Now to find x, we will have to move (0.5x) to the left side by subtracting it from both sides. We will get,
Now to find x we will move (-0.42) to the right side by dividing it to both sides.
We will have to simplify 1000 and 42 by dividing the numerator and denominator by a common factor of it. 2 is a common factor of 1000 and 42.
So by dividing 1000 and 42 by 2 we will get,
We have got the required answer here. Option A is the correct option here.