Answer:
Step-by-step explanation:
1) add all angles to 180
2) exterior angle = P + Q
i can add remaining ones also
84 - 12 = 72, because the total age is 84, and we know that Michael is 12 years older than Lynn, making Lynn 72 years old.
Answer:
or 2/9
Step-by-step explanation:
Any single digit integer over 9 is the same as the integer repeating in decimals.
3x/7-2=15
3x/7 = 17
3x = 119
x = 39.67
Move everybody to one side
minus 5x+2 both sides
x^2-5x-2=0
use quadratic formula where
if you have
ax^2+bx+c=0
x=

1x^2-5x-2=0
a=1
b=-5
c=-2
x=

x=

x=

aprox
x=5.372281323 or -0.3722813233