Answer:
67.5°
Step-by-step explanation:
180 -45 = 135
135 / 2
k= 67.5
Answer:
.82^5 = ? I dont think it helps
Step-by-step explanation:
Lucy started with 12 books and gave 3 which is 12-3=9
Lucy has 9 books m
First let's get rid of the x by multiplying the tip equation by -2
-2 (-6x - 2y = -4)
+
(-12x - 5y = -13)
Distribute
(12x + 4y = 8)
+
(-12x - 5y = -13)
x cancels out and you're left with
-1y = -5
y = 5
Now solving for x, plug in your y into one of the equations
-6x - 2(5) = -4
-6x - 10 = -4
-6x = 6
x = -1
(-1 , 5) is the solution
