Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Sophia.13

  • one year ago

Y intercept = 50, 000 rate = +7% Y intercept = 70, 000 rate = -4% How can i find out When will these lines cross each other?

  • This Question is Closed
  1. kropot72
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    If it is assumed that the rates correspond to slopes of 7/100 and -4/100 we can write two equations in the standard form y = mx + b as follows: \[y=\frac{7}{100}x+50000\ ...........(1)\] \[y=-\frac{4}{100}x+70000\ ...........(2)\] Subtracting equation (2) from equation (1) gives \[0=\frac{7}{100}x+\frac{4}{100}x-20000\ .............(3)\] Simplifying and rearranging equation (4) gives \[\frac{11}{100}x=20000\ ...........(4)\] Solving equation (4) will give the x coordinate of the solution and substitution of this value of x in either equation (1) or (2) will give the y coordinate of the solution

  2. Not the answer you are looking for?
    Search for more explanations.

    Search OpenStudy
    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.