Answer:
9=x
Step-by-step explanation:
80º=(8x+8)º
80=8x+8
Subtract 8 from both sides of the equation.
72=8x
Divide 8 from both sides of the equation.
9=x
Hope this helps :)
So with this, you'll be using a proportion to solve it. And here's what your equation will look like:

Firstly, you'll need to cross-multiply. Your equation will look like this: 
For this, all you need to do is square root, and your answer is
, however this answer can be simplified further.

In short, your answer is 
150 miles per hour (pretty slow for a plane so I hope that's correct)
Percents are parts of 100, so we divide 53 by 100 to find the decimal form of 53%.
53 / 100 = 0.53
Answer:
1/10
Step-by-step explanation:
we multiply by the reciprocal when we work with fractions and division.
Now you just multiply across.
Therefore, you have 2/20, which simplifies to 1/10.