arithmetic

posted by .

a guy bought some fish from a farm.during 1st week 1/8 of fish died ,in next 2 weeks 3/5 of the remaining died.what fraction of the original fish died in last three weeks

  • arithmetic -

    i need to know the procedure and formula in detail ty

  • arithmetic -

    After the first 1/8 died, only 7/8 were left
    3/5 of those died, meaning 3/5 * 7/8 of the original number died

    1/8 = 5/40
    3/5 * 7/8 = 21/40

    So, 26/40 = 13/20 of the fish died

  • arithmetic -

    Never buy fish from a farm. Farmed fish is yuucky. Good fish comes from the ocean.

    lets start with 40 fish
    the first week 5 die so we have 35 which is 7/8 of original

    after first week 7/8 or 35 remain

    then in weeks two and three 3/5* 35 = 21 die so we are left with 35 -21 = 14 fish

    so in those first three weeks 26 died
    26/40 = 13/20

  • arithmetic -

    ty

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Science

    A student goes fishing in the bay.He catches a few fish and dicides to put them with other fish in a small fishpond behind his house.The next day he notices that all the new fish have died. Which is the MOST LIKELY reason the fish …
  2. math

    john has a 25 gallon fish tank. John filled his fish tank today with 24 gallons of water. the water evaporates at a rate of 1.5 gallons per week week. John adds 2 gallons to the tank every other week. At which of the following times …
  3. AP Bio; PLEASE HELP!

    if a fish farmer wanted to harvest his fish so that it recovered at the maximum rate, where should the population be maintained?
  4. science help plzzz

    Multiple Choice 1. Which of the following images shows a living organism interacting with a biotic factor in its environment?
  5. Algebra 2

    A biologist has determined that a particular osprey has a 70% chance of catching a fish on any given day. Carry out a simulation of 20 trials using the random number table below to find the probability that the osprey will actually …
  6. Math

    A biologist has determined that a particular osprey has a 70% chance of catching a fish on any given day. Carry out a simulation of 20 trials using the random number table below to find the probability that the osprey will actually …
  7. algebra1

    Melissa wants to figure out how many fish live in a small lake by her house .She ccatces 15 fish and tags the (safely).Shethen outs thoes fish back in the lake .Then next day ,she catches 28 fish .of those 28 fish, 3 of them have the …
  8. college algebra

    fish population: the fish population in a certain lake rises and falls according to the formula F=1000(30+17t-t^2) , Here F is the number of fish at time t, where t is measured in years since January 1, 2002, when the fish population …
  9. Science

    Consider the researcher's experiments on the mysterious die-offs of fish in North Carolina rivers. Which of the following best represents her main hypothesis?
  10. Math

    Jason won some goldfish at the state fair.during first week,1/5 of them died, and during second week, 3/8 of those still alive are the end of the first week died.what fraction of the original goldfish were still alive after two weeks?

More Similar Questions