i believe it's 22.5 out of 45 to get exactly .500
Answer:
-4x-4
Step-by-step explanation:
(4x-4) can't be combined so they are not relevant. 4x-8x = -4x and -4 is unchanged.
Hey there! :D
Add the expression's together.
3x+y=27
-3x+4y= -42
3x+(-3x)= 0
y+4y=5y
27+(-42)= -15
5y=-15
Divide both sides by 5.
y=-3
Now, find x.
3x+y=27
3x-3= 27
3x=30
x=10
The solution is (10,-3).
I hope this helps!
~kaikers
Answer:
The measure of each interior angle would be 135
Step-by-step explanation:
In order to find this, we can note that each octagon has interior angles measuring 1080. So we can divide that number by the number of angles to get the exact size.
1080/8 = 135
Answer:
(0,-7)
Step-by-step explanation:
4x - y = 7
-y = -4x + 7
y = 4x - 7
-4x + (4x - 7) = -7
-4x + 4x - 7 = -7
x = 0
4(0) - y = 7
-y = 7
y = -7