math question

Question

if I have the equation p=10(120-n)-50n for how much profit you will make off of n amount of people when will the profit be zero

 

Answer 1

Hi Caleb,

This equation makes it able for you to plug-and-play the numbers.

Let's classify the variables first.
n is the number of people
p is the profit acquired

If you plug in p=0 (the situation when the profit is 0), you get
0 = 10(120-n)-50n
Now all you have to do is solve for n.

Answer 2

p = profit. 

therefore 0=10(120-n)-50n 

follow the laws of properties in math and work the equation out to solve for n. 

0=10(120-n)-50n

0=1200-10n-50n

0=1200-60n

-1200=-60n

20=n

Answer 3

When P is equal to 0, this is what you get:

0=10(120-n)-50n

solve this equation for n;

0 = 1200-10n-50n

0 = 1200-60n

60n = 1200

n =20