If the mean of 6 numbers increased by 3, by how much would the sum of
the 6 numbers have to increase? *

18

Step-by-step explanation:

If there are 6 numbers, then they all have to be increased by 3 to get a mean that is increased by 3

So we do 6 numbers each increased by 3, or 6 times 3 which equals 18

the photograph is photographer and- in the process- ourselves.

step-by-step explanation:

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)