Answer:
70
Step-by-step explanation:
let x= no of children, y = no of parents, z= no of grandparents.
so according to question condition .... y = 2z, x= y+50 and x+y+z= 400.
hence on solving above all three equation....
x = no of children = 190 Answer
y= no of parents = 140 Answer
z= no of grandparents = 70 Answer
Answer:
x = 1
Step-by-step explanation:
Triangle ABC is congruent to Angle DEF
13x - 12 = 7x - 6
6x = 6
x = 1
Answer: 53° 27' 5"
<u>Step-by-step explanation:</u>
20° 15' 18"
30° 41' 32"
+ <u> 2° 30' 15"</u>
52° 86' 65"
= 52° 1° 26' 1' 5"
= 53° 27' 5"
Step-by-step explanation:
a) 2z+3z+4z=180
9z=180
z=20
So,three angles are 40,60 and 80
b) (y+30)+(2y+80)+(y+10)=180
y+30+2y+80+y+10=180
4y+120=180
4y=60
y=15
Three angles are 45,110,25