Answer:
100
Step-by-step explanation:
All angles in a triangle equal to 180.
80+20=100
180-100=80
The line is 180
180-80=100
Answer:
The probability of that at least one marble is drawn is 2/7
Step-by-step explanation:
1/7+ 1/7=2/7
Answer:
b=9,a=12
Step-by-step explanation:
I solved by substitution:
b = 3/4a ---> plug this into the other equation
a + b = 21 is now a + 3/4a = 21
Reduce: 7/4a = 21
a = 12
Now solve for b:
b=3/4a is now b=3/4(12)
b=9
Answer:
light blue
bbbbbbbbccccc i said and brainly wont just let me type the answer if im wrong sorry