325
738
Equation: 90 + 85+ 80+76 = 331
The result of the equation - 70 plus 90 plus 60 plus 80, is found as follows; 70 + 90 + 60 + 80 = ( 70 + 90 ) + 60 + 80 = 160 + ( 60 + 80 ) = 160 + 140 = 300 Answer = 300
82.
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
390
70, 75, 80, 85, 90 and 95.
75 80 85 90 95
65, 70, 75, 80, 85.
Median of the set = arithmetic mean of 75 and 85 = 80
765