29 , 35 , 41
the sequence is going up
in 6s
Answer:
540°
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
A pentagon has n = 5, thus
sum = 180° × 3 = 540°
First we are going to set up two equations:
1)
2)
where x is the number of hotdogs sold, and y is the number of sodas sold. Let's subtract x from the second equation and set equal to 0:
1)
2)
Then let's add the two equations together to cancel out the y variable:
+
---------------------------------
Then solve for x:
So then return to equation 1 and plug in x to solve for y:
So then we know that x = 42 and y = 126; therefore, there were 42 hotdogs sold, and there were 126 sodas sold.
The first step to solving your equation would be to subtract 6.4 from both sides.
<span>3.5n+6.4=42.5
Subtract 6.4
3.5n=42.5</span>