Percentage difference = (difference/original)x100
80-68= 12
(12/80)x100= -15% or by 0.85
Solved simeltaneously (assuming the question),
x=12 and y=-1
a= -35,0,35
Respectivley B= -7,0,7
x=1/10
x1= 1/2
𝑎≥𝑏≥0≥𝑐.
13root2+4
Awesome thanks, I had trouble typing it into the calculator, but that notation works.
2/7 of 77 is 22
77-22=55.
2/5 of 55 is 22
55-22=33.
3 of these scores are for Cyprian.
Therefore;
His scores must add up to 180 for the mean to be 90.
His scores must be 85, 92 and 94.
The remaining values add to 278/3 = 92.6 recurring, round as needed.
