Calculate the mean of 45,74,80,55,61​

Mean = 63

Step-by-step explanation:

To find the mean you add all of the numbers, then divide by however many numbers there were.

to find the mean you add all values and then divide them by the number of values you have so 45+74+80+55+61=  315

then since you have 5 numbers you divide 315 by 5 which gets you 63. your mean is 63

Step-by-step explanation:

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24

10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol