I'm not 100% sure, but I'm pretty sure it's 1/12, 1/12, 1/12, 1/12
there are 17 kids and 12 adults 17x8=136 12x12= 144 136+144=280
X2+12x+11=0
x2+12x+(12/2)^2-(12/2)^2+11=0
(x+6)^2-36+11=0
(x+6)^2=25
(x+6)=+-5
x= +5-6 or -5-6
= -1 or- 11
Answer: 60% of the people in the survey have had less than 3 accidents.
If we are looking for the amount that is less than 3 accidents, we have to add up the percent for the people that had 1 or 2 accidents.
0.35 for 2 accidents plus 0.25 for 1 accident equal 0.6 for both (or 60%).
1) Multiply everything by 8. It clears the fractions.
It gives you 6n + 128 =16 - n
You add the -n to the other side of the equation.
It gives you 7n + 128= 16
You then subtract 128 from 16.
It gives you 7n= -112
You divide everything by 7
It gives you n=-17