Answer:
Sum of angles of a polygon with one side less = (12-2)x180 = 1800
Sum of angles of a polygon with one side more = (14-2)x180 = 2160
Step-by-step explanation:
(n-2)x180 = 1980
n = 13
Sum of angles of a polygon with one side less = (12-2)x180 = 1800
Sum of angles of a polygon with one side more = (14-2)x180 = 2160
Answer:
Mary removed the dollar sign from (X.)
We know this because $4.00x$5.00=$20.00 so that’s correct and we know that $12.50x $4.00=$50.00. So, our only error here is that there is no dollar sign in our (X) numbers. So that is Mary’s mistake. We can correct it by simply adding a dollar sign to 20 to make $20.00 and adding another dollar sign to 50 to make $50.00
Step-by-step explanation:
hope this helps
Answer:
62
Step-by-step explanation:
its 62
Answer:
14 one 15 6
Step-by-step explanation:
Since x is on the right side of the equation, switch the sides so it is on the left side of the equation.
2
(
5
−
2
x
)
−
(
1
−
5
x
)
9
−
3
x
Simplify the left side.
x
+
9
=
9
−
3
x
Move all terms containing x to the left side of the equation.
4
x
+
9
=
9
Move all terms not containing x to the right side of the equation.
4
x
=
0
Divide each term by 4
and simplify.
x
=
0
