Answer:
y=29
Step-by-step explanation:
The angles are vertical angles so they are equal.
4y-8 = 79+y
Subtract y from each side
4y-y -8 = 79+y-y
3y -8 = 79
Add 8 to each side
3y-8+8 = 79+8
3y = 87
Divide each side by 3
3y/3 = 87/3
y=29
x-y=21 ⇒ x=y+21
x+13=2y
Substitute y+21 for x into the equation x+13=2y
So y+21+13=2y
Simplify 34=y
So Danielle is 34 years old. Plug y back in to the original equation
x-34=21
x=55
Tony is 55 years old
Angel ran 1 lap in 2 minu.
Answer:
if there are 12 cats there are 16 dogs
Step-by-step explanation:
3:4
6:8
12:16
Answer:70
Step-by-step explanation:
1
42
+
28
———
70
