We are given sides of the rectangle AB = (2x+1) and
AD = 4x.
Area of rectangle = Length × Width
Area = 4x(2x+1).
Distributing 4x over (2x+1), we get
and
Therefore, Area = .
There were 26 students in the classroom. 14 of the students went to the cafeteria and the rest went to the gym. What percentage
2 answers:
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Let's break the equation in several step to make things more clear: first of all, the numerator of the left hand side simplifies to
Similarly, the denominator becomes
Dividing by a fraction means to multiply by the inverse of that fraction:
So, in your case, we have
So, the equation has become
Multiply both sides by 3(9x-6):
Subtract 24x from both sides, and add 18 to both sides:
In the equation 
, a is the initial amount and b is the growth factor. So our initial amount is 30 and our growth factor is 8.3. Your correct choice for this is A.