Answer: Mom = 33 Son = 11
Step-by-step explanation:
A mother is three times as old as her son
Mom age =3x
AFTER 11 YEARS:
Son’s age =x+11
Mom’s age =3x+11
Also, she will be just twice his age
3x+11 = 2*(x+11)
or,3x+ 11 = 2x +22
or,3x-2x= 22–11
or, x=11
Son’s age = 11 years and mom’s age = 33 years
all angles of a triangle sum to 180
180 = 15x + 24x +21x
180=60x
solve for x
then substitute that for 24(x) to get the angle
Answer:
9°
-6 + 15 = 9
70