Atotal of 600 advertisements were sold for a certain magazine. if 20 percent of the first 200 sold were in color, 40 percent of the next 300 sold were in color, and 80 percent of the last 100 sold were in color, what percent of the 600 advertisements were in color?

40%

Step-by-step explanation:

Given : The total of 600 advertisements were sold for a certain magazine.  

If 20 percent of the first 200 sold were in color, 40 percent of the next 300 sold were in color, and 80 percent of the last 100 sold were in color.

Now, the number of advertisement in color = 20% of 200 + 40% of 300+ 80% of 100

Now, the percent of the 600 advertisements were in color is given by :-

Hence, the  percent of the 600 advertisements were in color= 40%

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.