# 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.

## 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