Q: What is 80 plus 85 plus 76 plus 70 plus 87 plus 80 plus 90 plus 80 plus 90?

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155

80 75 + 70 + 80 = 225 80 + 85 + 90 = 255 225 + 255 = 480 six numbers so 480 / 6 = 80

73.75

86 is the mean of 85, 91, 76, 85, and 93.

65, 70, 75, 80, 85.

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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

73.75

160