anonymous
  • anonymous
I am having dificutly wwith density and slope. I have to figure out the mass, volume, and density. I have attached the sheet with the question.
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
I need help with question 1 a) b) c) & d)
anonymous
  • anonymous
The first three questtion you can read directly from the graph: a) 30 g b) 25 ml c) 45 g

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anonymous
  • anonymous
For question d: Density is how much mass there is per volume, that is, if you got X grams in Y mililitres, you have a density of X/Y g/ml
anonymous
  • anonymous
i got a) 35 b) 50 c) 60
anonymous
  • anonymous
How did you get those results?
anonymous
  • anonymous
I looked at where the dots were OH WAIT ! i think im look at mass !
anonymous
  • anonymous
looking *
anonymous
  • anonymous
wait, i have no idea what im doing !
anonymous
  • anonymous
For example, for 40 mL substance A I looked at how high the line was at the 40mL mark, and it seems it is 30g high
anonymous
  • anonymous
OHHHHHHHHHHH
anonymous
  • anonymous
but i still don't get what to do for d) ?
anonymous
  • anonymous
ok :P now, see what I wrote before? Density is how much mass there is per volume, that is, if you got X grams in Y mililitres, you have a density of X/Y g/mL, are you following?
anonymous
  • anonymous
Using the previous answers, for example for substance A we have there are 30g in 40 mL, therefore, it has a density of 30/40 g/mL
anonymous
  • anonymous
(or three quarters grams per mililitre)
anonymous
  • anonymous
don't you divide or multipy the thing ?
anonymous
  • anonymous
yeah, density is mass divided by volume (g/mL)
anonymous
  • anonymous
what substances am I supposed to find the density of ?
anonymous
  • anonymous
All three of them :P I did for A, now you can do it for B and C, you just have to divide the respective masses and volumes
anonymous
  • anonymous
ok
anonymous
  • anonymous
thank -you ! :}
anonymous
  • anonymous
Tell me what you got when you are ready :)
anonymous
  • anonymous
ok
anonymous
  • anonymous
density of the substances a) 0.75 b) 1 c) 1.5
anonymous
  • anonymous
That's what I got :) and you will also notice, that those are alse the values of the respective slopes in the graph ;)
anonymous
  • anonymous
*also
anonymous
  • anonymous
ohhhhhhhh
anonymous
  • anonymous
IM SO SMART :)
anonymous
  • anonymous
Hehehe, cheers, mate, nice work :P
anonymous
  • anonymous
LOOL, Thanks for the help :D
anonymous
  • anonymous
No probs ;)

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