The mean:
111+132+186
429/3=143
Subtract mean:
111-143= -32²= 1,024
132-143=-11²= 121
186-143= 43²= 1,849
Now find the mean again:
1,024+121+1,849
2,994/3= 998
Now square root:
√998≈31.591138
Answer:
(2x +5) + 3x = 90
5x + 5 = 90
5x = 85
x = 17
i need 1 more brainliest to get expert rank!
35 thousand=35,000
26 hundred=2,600
16 tens=160
12 ones=12
Well you have to find out how many cd is 40% and 30%
30% = 30x.3=9
40% = 30x.4=16
now add 16 and 9
16+9=25 now subtract 25 from 30 and see that you have 5 cd of a different type of music to find that as a % divide 5 by 35 to get .14 I rounded it to the nearest hundreth now move the decimal over 2 spots to get 14%
