Math

posted by .

A plumber charges $45 for a service call, plus $70/h for her time.

a. Find the cost of a two hour service call.

b. How long was a services call that cost $150?


Also .......

as the weight held by a spring increases, the length of the spring increase proportionally. suppose a 2-lb weight stretches a spring to 15 in., and a 12-lb weight stretches the same spring to 20 in. what is the length of the spring with no weight attached?

  • Math -

    a. C = 45 + 70*1 = $115 = Cost.

    b. 45 + 70X = $150,
    70X = 150 - 45 = 105,
    X = 1.5h.



    Jessica, check your 4-18-11,2:45pm post

  • Math -

    sooka my dik

  • Math -

    sook me hary bllz

  • Math -

    slope of the line through A(2, 6) and B(8, -1)?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    You need to choose a long distance telephone service for your business. The two options available in your area are Call Me and Trans Talk. Call Me charges a $5.95 monthly service fee and $.08 per minute used. Trans Talk charges a $12.95 …
  2. math

    A computer technician charges $40 for a house call and $38 per hour. The expression 40 + 38t is used to find the cost of a house call that lasts t hours. What is the cost of a house call that last 3 hours?
  3. Math - Word Problem

    Word problems confuse me >_> You are choosing between two long-distance telephone companies. Company A charges $.09 per minute plus $4 monthly fee. Company B charges $.11 per minute with no monthly fee. X = number of minutes …
  4. Math

    Apex Plumbing charges a trip fee of $55 plus $15 for each quarter hour of service. John wrote an equation using, t , the total cost of a service call, as a function of, h , the number of hours the call lasted. What is the value of …
  5. programming

    Write a program that computes the cost of a long distance call. The cost of the call is determined according to the following rate schedules. a.A call made between 8:00 AM and 6:00 PM is billed at a rate of 6 rupees per minute. b.A …
  6. math

    A plumber charges a flat $50 for a home service call plus $10 per 15 minutes of labour. Write an equation for calculating the total charges, C, in terms of the hours of labour, H. If you were to plot a graph of C vs. H, what would …
  7. Math

    An electrician charges a $50 fee to make a service call plus $25 per hour he works. Determine whether the relationship between the two variables is proportional. Hours Cost($) 1 75 2 100 3 125 4 150 Is this proportional?
  8. math

    a plumber charges $25 for service call plus $50 per hour what is the cost 8 hours?
  9. Math

    URGENT Candice and Dino operate computer repair services. For a service call, candice charges 40 and dino charges 50, in addition, they each charge an hourly rate. Candice for 35/hr and Dino for 30/hr . One day their charges of two …
  10. math

    1.The cost of a telephone call from Wilsonto East Meadow is $0,60 for the first three minutes plus $0.17 for each additional minute. What is the greatest number of whole minutes of a call if the cost cannot exceed $2.50?

More Similar Questions