posted by .

The number of days, d, it takes for a construction crew to repave a certain road varies inversely as the number of workers, w, that work on the project.

So my equation is d = k/w

If w = 16, how do I find d?

d = k/16

Also, why is Y = 2x^2 + 3√x not a quadratic equation? It's highest power of x is 2.

Thank you.

  • math -


    And it's because square root of X can be a negative number which would make it an imaginary number.

  • math -

    Z, thanks, however, in my first question, how do I find d in that equation?

  • correction - math -

    Y = 2x^2 + 3?x is NOT a function, since a quadratic must have the form
    y = ax^2 + bx + c
    that is, the exponents of the x term can only be 2 or 1
    the term ?x is x^(1/2)

    Furthermore, the graph of a quadratic function is a parabola, the graph of Y = 2x^2 + 3?x
    looks like this, not a parabola

    as to your first question, you need extra information to find k, and after that you can find d

  • math -

    Is the number of worker the only variables they give you?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    The amount paid to a work crew varies jointly as the number of persons working and the length of time worked. If 5 workers earn $5123.73 in 3.0 weeks, in how many weeks will 6 workers earn a total of $6148.48?
  2. college algebra

    the following rational function gives the number of days it would take two construction crews, working together, to frame a house that crew 1 (working alone)could complete in t days and crew 2 (working alone) could complete in t+3 …
  3. Math-Algebra

    1. The length of a rectangle with a constant area varies inversely as its width. The length of this rectangle is 8in when its width is 3in. Find the length when the width is 4in. 2. The number of people working on a certain job varies …
  4. Math Word Problem

    A. The number of people working on a certain job varies inversely as the number of days needed to finsih the job. If it takes 10 carpenters to finish a house in 8 days, in how many days will 4 carpenters finish it?
  5. Algebra

    Hi! Can you please re-check my answers. Mt teacher said some of them are not right but when I do it again, I still come up with the same answer. This is about Variations. Thanks! 1. What kind of variation equation is a=kbcd --> …
  6. math

    A construction expected a new project from start to finish to take 12 weeks. The crew will work 7 days a week. In how many days will the project be complete. Explain how you could check your answer to be sure it's correct.
  7. math

    A construction crew has just finished building a road. The road is 10 kilometers long. If the crew worked for 4 2/3 days, how many kilometers of road did they build each day?
  8. math

    A construction crew is lengthening a road. The road started with a length of 56 miles, and the crew is adding 3 miles to the road each day. Let L represent the total length of the road (in miles), and let D represent the number of …
  9. Math

    Suppose that the amount of time it takes to build a highway varies directly with the length of the highway and inversely with the number of workers. Suppose also that it takes 100 workers 6 weeks to build 4 miles of highway. How long …
  10. help asap plz

    A 15-person road crew is scheduled to finish repairing a highway in 12 days. On the morning of the fifth day, several new workers join the crew and, together, they complete the remaining repairs in 6 days. How many new workers joined …

More Similar Questions