Answer:
Step-by-step explanation:
let my present age=x
then 2(x-5)=x+2
2x-10=x+2
2x-x=2+10
x=12
my age=12 years
age of brother =12-3=9 years
age of sister= 9-2=7 years.
Octagons have 8 sides. If each side is 5 feet then the perimeter is 40 feet. You add up the sides.
Answer:
Step-by-step explanation:
2−8−6=−6x2−8x−6=−62−8−6−(−6)=0x2−8x−6−(−6)= 02Add the numbers3Use the quadratic formula3 more stepsSolution=8=0