Mathematics
Grade-7
Easy

Question

Pizzazz Publications is having some books printed. The printer charges $800 plus $5 per book. Find an equation for the  total number of books that can be printed for $4,000.

  1. 800 + 5x = $4000
  2. 800x + 5 = $4000
  3. 4000 + 5x= $800
  4. 800 + 5 = $4000

hintHint:

In this question, we have to write the equation for this question. Now , Pizzazz publication is having some book printed, the printing book charge is $800, plus per book is $5. Total cost is $4000. Plus means addition and one time charge is fixed number means constant but hourly rate is varies on each hour so it is variable.

The correct answer is: 800 + 5x = $4000


    Here we have to write the equation of this question.
    Firstly , we have given statement is ,
    the printing book charge is $800 plus per book is $5 is equal to $4000.
    When plus is given it is always addition.
    Whenever increased, more than, plus, added, are used we always uses the addition.
    And here printing book charge is fixed number means constant but per book cost is varies on each books so it is variable.
    So we can write the equation that is,
    800 + 5x = 4000
    So the total hours is after solving is, x = 640
    Therefore, the correct answer is 800 + 5x = 4000

    In this question we have to find the equation. If plus was in the question that means addition . You have to just find which is constant and which is variable and then write the equation according them. , If “ plus” is given then it is addition. Like increased by, sum of, more than, the total of ,plus , add etc then it is addition in algebraic expression.

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