Jenny is 6b years old. her brother is half her age and her sister is 4 years older than jenny. what is the average age of the three siblings in terms of b?

5b + 4/3

Step-by-step explanation:

So if Jenny is 6b and her brother is half that he must be 3b. If her sister is four years older than her then she must be 6b + 4. To find the mean (or average) you add all the numbers and then divide by how ever many things you added together, so you would do:

Average = (6b+3b+6b+4) ÷ 3

= (15b+4) ÷ 3

= 5b + 4/3

it’s the first one your welcome

"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.