math

posted by .

Could you please show me how to work this problem?

Each hand in the human body has 27 bones. There are 6 more bones in the fingers than in the wrist. There are 3 fewer bones in the palm than in the wrist. How many bones are in each part of the hand?

  • math -

    f = w+6
    p = w-3
    f+w+p = 27

    now make substitutions, or solve using elimination or matrices, to get

    (f,p,w) = (14,5,8)
    that is,
    14 finger
    5 palm
    8 wrist

  • math -

    Let x be the number of bones in the wrist.Then fingers have x+6 bones and palm has x-3 bones. Altogether there are 27 so; wrist+fingers+palm=27 so x+(x+6)+(x-3)=27 so 3x+3=27 3x=24 x=8 Hence 8 bones in wrist, 8+6=14 bones in fingers and 8-3=5 bones in palm.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. human bones

    Im studying a handout on human bones for a quiz. This handout shows the leg bones being Tibia and Fibia. But which is which?
  2. math

    Marks dog buried 1/2 of his bones in Josh's backyard. He buried 1/3 of his bones in kaylees backyard. he still had 4 bones left to bury. How many bones did Marks dog have in all.
  3. math

    marks dog buried 1/2 of his bones in Jeans backyard. He buried 1/3 of his bones in Mitchell backyard. He still had 4 bones left to bury. how many bones did Marks dog have in all.
  4. math

    There are 27 bones in each hand. The fingers have 6 more bones than the wrist and the palm has 3 less bones that the wrist. How many bones are in the fingers nd wrist?
  5. math

    about 12.6% of the bones are vertebrae in the human back. how many bones in the human body are vertebrae?
  6. math

    about 12.6% of the bones are vertebrae in the human back. how many bones in the human body are vertebrae?
  7. math

    An adults body has 206 bones. 106 of these bones are feet, hand, wrists, and ankles. What fraction of adults's bones is in the feet, ankles, hands, and wrists?
  8. Math

    Each human hand has 27 bones. There are 6 more bones in the fingers than in the wrist. There are 3 fewer bones in the palm than in the wrist. How many bones are in each part of the wrist?
  9. SCIENCE-BONES-NEED HELP

    Do all bones contain bone marrow? (Im specifically talking about the hand bone) Please give me any information on bones, joints, muscles, ligaments, tendons, cartilage, and changes of the hand. I have some, but I want more info. Please
  10. SCIENCE-BONES-NEED HELP

    Do all bones store fat and produce blood cells?

More Similar Questions