Algebra

posted by .

ARE THESE CORRECT? Over the yrs, the O'Connell Company has been switching from typewriters to computers. At once time the company had 815 typewriters which were wearing out at a rate of about 60 per year. At the same time, they had 500 computers and were adding 75 per year. Assume that the company continues buying computers and eliminating typewriters at the same rate. a. Write an expression for the number of typewriters after y years. 815-7y; b. Write an expression for the number of computers after y years. 500+75y; c. Make a table and use it to find the number of years it takes for O'Connell to have an equal number of typewriters and computers. 1st yr 815 typewriters 500 computers; 2nd yr 755t & 575c; 3rd yr 695t 650c; 4th yr 635t 725c; 5th yr 575t 800c; 6th yr 515t 875c Answer: they won't d. Write an inequality of the form y<k or y>k to describe when there are more computers than typewriters. y>k

It looks good overall. I think you made a typographical error here:

a. Write an expression for the number of typewriters after y years. 815-7y

That should be 815-60y I say it was a typo just because it looks like you used the right equation while doing the table.

As far as "c. Make a table and use it to find the number of years it takes for O'Connell to have an equal number of typewriters and computers."

You're right with your answer: "they won't" But you might want to be a pain to your teacher and ask if, between the 3rd and 4th year, they had a day or two when the amount was exactly the same as they were getting new computers in and typewriters were wearing out.

I'm personally amazed there's a question, these days, about a company that has 815 typewriters. I don't know any company I worked for that has even 1 :)

Good job on answering the questions.

Matt

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Computers

    I have an assignment where I had to interview a classmate about an experience over the Summer. He told me about his trip to California, to participate in a boot camp for the company Idel Information. The class was soon over, and I …
  2. maths

    in 1992, a software company had a profit of $30,000,000. in 1998, the company had a profit of $210,000,000. find the average rate of change of the company's proft in dollars per year. I have no idea how to this. please explain step-by-step.. …
  3. Math

    Im having trouble getting the correct answer to this question. Could someone help out. Monthly sales of a particular personal computer are expected to decline at the following rate of S'(t) computers per month, where t is time in months …
  4. finance

    Company sales and profits grow at a rate of 30% per year; at the end of 4 years (t4) the growth rate drops to steady 5%. Company recently paid a dividend of $1 per share, and the required return is 20%. What is the value of one share …
  5. business

    You have recently learned that the company where you work is being sold for $275,000. The company’s income statement indicates current profits of $10,000 which have yet to be paid out as dividends. Assuming the company will remain …
  6. physics

    This is an example question which I have the answer to but can not seem to get the same answer through my workings, any help with the equation would be great. A particular task exposes the operator to alpha radiation at an average …
  7. Physics

    A particular task exposes the operator to alpha radiation at an average dose of 200 ìGy each time the task is performed. If the company needs the task performed once per day over a 250-day working year and the maximum occupational …
  8. algebra 1

    A company manfactures an alarm clock. Three weeks ago the company had 250 on hand. Two weeks from now it will have 500. Assume the company will continue to make the clocks at the same rate.
  9. Finance

    Sully Corp. currently has an EPS of $2.14, and the benchmark PE ratio for the company is 20. Earnings are expected to grow at 7.5 percent per year. What is the target stock price in 1 year?
  10. Math

    A building has 2 floors. Each floor has 4 rooms. Each room has 6 tables. Each table has 5 typewriters. How many typewriters would have to be taken off each table so that the number of typewriters on the tables on one floor would be …

More Similar Questions