155
80 75 + 70 + 80 = 225 80 + 85 + 90 = 255 225 + 255 = 480 six numbers so 480 / 6 = 80
73.75
65, 70, 75, 80, 85.
86 is the mean of 85, 91, 76, 85, and 93.
Equation: 90 + 85+ 80+76 = 331
82.
325
70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85 (including 70 and 85)
The variance of 80 85 72 76 95 = 79.3
155
The average is all the numbers added together and then divided by the # of numbers.(80+85+90+88+86+83+89+70)/8=671/8=83.875Order of operations has the brackets first and then the division.
80 75 + 70 + 80 = 225 80 + 85 + 90 = 255 225 + 255 = 480 six numbers so 480 / 6 = 80
Why don't u spend your time putting it in a calculator instead of typing it in here? the answer is : 76+85=161
The composite numbers are: 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86 ,87, 88
160
62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88.60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90