the first group of 10 children has a mean weight of 15.6 kg, the second group of another 10 children has a mean weight of 16 kg, and the third group of children has a mean weight of 20 kg. if the mean weight of all the children is 17 kg, what is the total number of children in all of the three groups?

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4

hm let me think hm think think hm think yes

all you have to do is multiply them both to see how many out comes you can put:

3 x 2 = 6

you can make 6 diferent combinations of crusts and toppings.

~batmans wife dun dun

step-by-step explanation:

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