Answer:
17
Step-by-step explanation:
Since the X's are the same, the only distance we need to find is between the two y's
Area of a circle = pir^2
The radius is half the diameter so is 2 metres
So r^2 is 4
So the answer is 4pi or 12.57 metres squared
Let me know if you have any questions
you just do 144 divided by 8. There are 18 members of the class.
42 and 14
explanation:
x+y = 56
x = 3y
Substitute for x in the first equation:
x + y = 56
x = 3y
3y + y = 56
Combine like terms:
4y = 56
Divide both sides by 4:
y = 14
So if y = 14, and x = 3y, then x = 42.
Now substitute for both x and y in both of the original equations to prove they are the correct values.
x + y = 56
x = 42
y = 4
42 + 14 = 56
56 = 56
x = 3y
x = 42
y = 14
42 = 3*14
42 = 42
So the two numbers, x and y, are 42 and 14.
Answer:
x=−2y+3 and x=y+6
Step-by-step explanation:
x+2y=3
x+2y+−2y=3+−2y
x=−2y+3
x−y=6
x−y+y=6+y
x=y+6
