math !!!! :O

Emily’s dad pays her for picking strawberries. Each hour she works he increases her pay. The first hour she earns two cents, the second hour she earns four cents, the third hour eight cents, and so on, doubling the amount each hour. How much money will she earn if she works six hours? How much money will she earn after ten hours? How many hours will she need to work to earn at least $5.00?

asked by evelyn
  1. Hour 1: 0.02
    Hour 2: 0.04
    Hour 3: 0.08
    Hour 4: 0.16
    Hour 5: 0.32
    Hour 6: 0.64

    Add these 6 numbers together to find your first hour.

    Keep doubling the preceding number to find the other two answers.

    posted by Ms. Sue
  2. what do u mean by add your six numbers to get your first hour.

    posted by anomyous
  3. Sorry -- it should add those numbers to find your first ANSWER.

    posted by Ms. Sue
  4. thanks i figured it out

    posted by Evangelise
  5. your numbers form a geometric sequence where
    a = .02
    r = 2

    Term(6) = ar^5 = .02(2^5) = .02(32) = .64
    term(10) = ar^9 = .02(2^9) = .02(512) = 10.24

    ar^(n-1) > 5.00
    .02(2)^(n-1) > 5
    2^(n-1) > 250

    I know 2^7 = 128 and 2^8 = 256

    so what do you think?

    posted by Reiny
  6. $5.10, calculated as follows:

    $.02 + $.04 = $.06 + $.08 = $.14 +$.16 = $.30 + $.32 = $.62 + %,64 = $1.26 + $1.28 = $2.54 + $.56 = $.10

    posted by Tony

Respond to this Question

First Name

Your Response

Similar Questions

  1. Maths

    Mrs Smith pays kate for babysitting by giving her 10 cents for the first-half hour, 20 cents for the second half-hour, 40 cents for the third half-hour etc. How long does she work to earn $12.70?
  2. Math

    A plumber makes $4.50 per hour more than his apprentice. During an 8-hour day, their combined earnings total $372. How much does each make per hour? (hint: if you decide to use cents instead of dollars,then use 450 cents per hour
  3. Chemistry

    Assume electricity cost 15 cents kw per hour....using the energy requirements.what is the per gram cost of energy to produce Na + AL? Useful info: 2NaCL --> 2Na + CL2 around 600 degree C; 14 KJ per g Na. Al- 2Al2O3-->4Al+3O2
  4. math

    Claudia earns $6.40 per hour (h). For overtime (each hour over 40 h) she earns $9.60. If she works 48.5 h in a week, what pay should she receive?
  5. Physics

    At 7.65 cents per kilowatt-hour, what does it cost to operate a 10.0 hp motor for 6.00 hr? At 7.65 cents per kilowatt-hour, what does it cost to leave a 75.0 W light burning 24.0 hours a day?
  6. Matg

    kyle has a job at t shirts r us that pays $8.50 per hour" but requires an employee to purchase a uniform for $15. Kara works at caps n tees and earns $6 an hour. How many hours would kyle and kara have to work to earn the same
  7. math

    The charge for renting a rowboat on Loon Lake is D dollars per hour plus c cents for each minute into the next hour. How many dollars will Mr.Wilson pay if he used a boat from 3:40 P.M. to 6:20 P.M.
  8. matthematics

    Fiona has a a job that pays $7 an hour for a 40-hour work week and $10 an hour for every hour of overtime that she works. If she works 43 hours, how much money will she make before any deductions are made?
  9. arithmetic

    you can email me if you want i have more. A man owned 75 shares of stock worth $50 each. The corporation declared a dividend of 8 percent payable in stock. How many shares did he then own? 81 shares but how? If a scow is towed at
  10. Math

    18. Carla earns $8.43 per hour working 40 hours a week. If she worked 7 overtime hours one week, what would be her earnings? $396.21 $366.74 $425.75 19. Lauren earns $3.75 per hour as an usher. In 5 days her tips were $19.75,

More Similar Questions