The answer is A. Im not exactly sure how to get there I just plugged it into my calculator.
2% = 2/100 = 1/50
20% = 20/100 = 1/5
85% = 85/100 = 17/20
4% = 4/100 = 1/25
The answer or average is 15
Answer: Hi, If I'm correct then Sal demonstrates how the sum of the exterior angles of a convex polygon is 360 degrees.
Hope this helps! :)
remember, you can do anything to an equation as long as you do it to both sides
we can do a subsitution
y=x+6
y=-7x-10
since y=x+6, we can subsitute x+6 for y in the other equation
y=-7x-10
x+6=-7x-10
add 7x to both sides
8x+6=-10
minus 6 from both sides
8x=-16
divide both sides by 8
x=-16/8=-2
the valu eof x that satisfies both equations is x=-2
