Answer:
x = 3
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Fractions and percents are simply.different ways to express a ratio between two numbers.
ANSWER
Center: (20,12)
Radius:23
EXPLANATION
The given circle has equation:

We complete the square as follows:





Comparing this equation to:

We have

representing the center and

being the radius.
200- your age = your target heart rate.
Hence, for a 40 year old man, it’s 200-40= 160.
Hope this helps!
95,000 / 125,000 = 0.76
which means she was ranked in the upper quartile or the 76th percentile