Answer:

Step-by-step explanation:

2x + 3y = 45
x + y = 10......y = 10 - x
2x + 3(10 - x) = 45
2x + 30 - 3x = 45
-x + 30 = 45
-x = 45 - 30
-x = 15
x = -15 <====
and y = 25
Supplementary angles have a sum of 180 degrees.
If one angle is x, its supplementary angle is 180-x.
We are told that x is 8 less than triple its supplements so:
x=3(180-x)-8
x=540-3x-8
4x=532
x=133
900. You round up, because it is above 850. :-)
Answer:
see explanation
Step-by-step explanation:
saying
is the same as saying
because the first is saying
and the second is saying
one is just a more drawn out version to solve