The scale factor is 2
x = 11.5
14/7 = 2
23/x = 2
x = 11.5
Answer: The answer is 400 blue marbles.
Step-by-step explanation: Given that there are 560 marbles in a bag, out of which 65% are red and rest are blue.
So, number of red marbles is

and number of blue marbles is

Now, if 28 red marbles are replaced by blue marbles, the the new number of red and blue marbles will be

Now, to get 65% of the marbles blue, we need to add some more blue marbles to the bag. Let 'x' number of blue marbles are added to the bag, then

Thus, 400 blue marbles need to be added to the bag.
2 ( k-5) 13 you don't need two k-5 you can simplify it so you just know to do it twice
1 one is the answer
2 is the answer either
all the equations are in it's simeplest form
Answer:
C
Step-by-step explanation:
the solution to a system of equations given graphically is at the point of intersection of the 2 lines.
the lines here are parallel and never intersect. Thus there is no solution