Answer:
y = 1.705882353
Step-by-step explanation:Combine like terms: 20 + 9 = 29
29 + -10y + -7y = 0
Combine like terms: -10y + -7y = -17y
29 + -17y = 0
Solving
29 + -17y = 0
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '-29' to each side of the equation.
29 + -29 + -17y = 0 + -29
Combine like terms: 29 + -29 = 0
0 + -17y = 0 + -29
-17y = 0 + -29
Combine like terms: 0 + -29 = -29
-17y = -29
Divide each side by '-17'.
y = 1.705882353
Simplifying
y = 1.705882353
Answer:
45 degrees
Step-by-step explanation:
The formula to find the sum of all the interior angles in an "n-gon" (n is a variable that stands for the numbers of sides, ex) 20-gon --> 20 sided polygon) is
.
Let's plug in 100 to find the sum of all the interior angles in a 100-gon.
![180(100-2)](https://tex.z-dn.net/?f=180%28100-2%29)
I would rather distribute than simplify the parentheses and have to multiply 180 by 98.
So:
![18000-360](https://tex.z-dn.net/?f=18000-360)
=
degrees
[REMEMBER, IT WAS NOT GIVEN THAT THIS POLYGON IS REGULAR, SO <u>DO NOT</u> DIVIDE 17640 BY 100]
Now to find the last angle, we can just subtract since we are given the value of 99 of the 100 angles (17595 degrees).
So the last angle is
degrees
Answer:
x=5,y=-12
Step-by-step explanation:
You add the two equations to get: 4x=20
Then you get x=5.
You plug this in to x-y=17 to get y=-12
The answer is x=5 and y=-12
Let
p-------->total paintings that Sergio has in his art collection
step 1
<u>Find the number of paintings that each collectors will donate</u>
Divide the total paintings that the collectors will donate by the number of total collectors
=(48/12)=4 painting
<u>Find the numbers of paintings will sergio have in his art collection after his donation</u>
p-4
therefore
<u>the answer is</u>
(p-4)