Charmaine= x
William=x+3
3 times Charmaine = 3x
2times William = 2x+6
5x+6=76
5x=76-6
5x=70
X=14
Charmaine is 14
William is 3 years older so is 17
Check:
17x2= 34
14x3=42
34+42=76
So Charmaine is 14
William is 17
Answer:
f^-1(x)= -x/5 - 4/5
Step-by-step explanation:
Answer: 2
Step-by-step explanation: angle measures don't change when changing size
9514 1404 393
Answer:
y = (x +7)/3
Step-by-step explanation:
Multiply the given equation by y/3:

1 < = x + 7 < 7....subtract 7
1 - 7 < = x + 7 - 7 < 7 - 7...simplify
-6 < = x < 0
closed circle on -6, open circle on 0, shading in between