You can set up this equation as:

Because remember, 70% is equal to 0.7 and x represents the unknown value. So, let's just solve it:

So,
70% of 120 is 84.
Answer:

Step-by-step explanation:
The equation of the horizontal hyperbola in standard form is:

The position of its center is:


The values for c and a are respectively:




The remaining variable is computed from the following Pythagorean identity:




Now, the equation of the hyperbola is:

Answer:
Take a look at this screen shot hope it helps
Step-by-step explanation: