Answer:
Step-by-step explanation:
The measure of the second angle = n
The measure of the first angle = 2*n
The measure of the third angle = n + 88
==================
n + 2n + n + 88 = 180
4n + 88 = 180
4n = 180 - 88
4n = 92
n = 92/4
n = 23
============
second angle = 23
First angle = 2*23= 46
Third angle = 23 +88 = 111
The total is 180
Answer:d
Step-by-step explanation:
Answer:
15.4-4.9=10.5
^ this is what you would do to find what you need to add
10.5+4.9=15.4
I guess-
Answer:
Step-by-step explanation:
3x - 4y = -11
x - 2y = -5
Compare the coefficients of the variables.
The coefficients of the x terms, 3 and 1, are multiples of each other.
The coefficients of the y terms, -4 and -2, are also multiples of each other.
That makes it easy to eliminate either variable.
I'll eliminate the y variables. Multiply the second equation by -2, then add it to the first equation:
₋-2x + 4y = 10
3x - 4y = -11
--------------------
x + 0y = -1 , so x = -1.
Substitute -1 for x in either equation and solve for y:
3(-1) - 4y = -11
y = 2
(x,y) = (-1, 2)
Answer:
152
Step-by-step explanation:
All segments in a triangle add to 180. 1
8+10+x=180
x=152
