I am sorry for my bad hand writing
Answer:
There are 20 kids total in the class.
Step-by-step explanation:
15/100 × 20 = 3
You can use direct proportion for any percent calculation.
Compare each number with its percent.
3 i
s 15
% of what number? Let the number be x
So, 3 represents 15
% and x represents 100
%
x/
100
= 3/15
Multiply by 100 to isolate x
x = 
x = 20
Check: 15/
100 × 20 = 3
Answer:
No solutions
Step-by-step explanation:
4(2x-3)=2(4x-6)

Same components are present on both sides of equal sign, therefore NO SOLUTIONS are possible.
Answer:

Step-by-step explanation:
Given

Required
Solve:
Apply the following law of logarithm:

So, we have:

Using calculator, we have:


Approximate
