Simplify 3
1 answer:
You might be interested in
Multiply the first equation by 1.5, to get:
Subtract the second equation from this:
Substituting into the first equation:
Therefore, it takes 1/12 minute to print a black-and-white page, and 1/8 minute to print a colored page.
Subtract the second equation from this:
Substituting into the first equation:
Therefore, it takes 1/12 minute to print a black-and-white page, and 1/8 minute to print a colored page.
Here, we may use Geometric Progression
The sequence follows as:
27, 18,12,...
The first term (a)= 27
27/18 = 18/12
common ratio = 1.5
Let fourth term be x
Therefore , 12/x = 1.5
=> x= 12/1.5 = 8
