Question 663972: A local cell phone company offers two different calling plans.in the first plan, you pay a monthly fee of $30 and $0.35 per minute. In the second plan you pay a monthly fee of $99 and $0.05 per minute. Write a system of equations showing the two calling plans?
Answer by pv=nrt15rcks(23)   (Show Source):
You can put this solution on YOUR website! Look. You would take the systems and set them in y= form. The 30$ per month with $.35 per minute, well, we will call it equation "a", and the second equation will be "c". So in equations, we set them up in y=mx+b format, right? So we take equation a and we set in format. The b is the y intercept and in a, the b would be $30 . Our new and improved equation is now y=mx+30.
Our next step would be to find m. The m is the increase per minute, or .35. Our first equation is y=.35x+30.
The last step would be to repeat that process for equation c, which gets you y=.05x+99.
Your final answer will look like this:
y=.35x+30
y=.05x+99
|
|
|
