You can figure out the answer by doing this:
8% = 2300/x
and do the same for the second one
(and solve)
(2x - 5)° + 45° = 180°
2x° + (-5 + 45)° = 180°
2x° + 40° = 180°
2x° = 180° - 40°
2x° = 140°
x° = 140 ÷ 2
x° = <u>7</u><u>0</u><u>°</u>
So, the value of x is 70°
<em>Hope it helps and is useful</em><em> </em><em>:</em><em>)</em>
It's is a square and you know just by graphing it
-3x+1 just do the opposite
When two variables have an inverse relationship, the slope is negatively correlated.
