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hannahbabiexoxo

  • 3 years ago

Algebra help please!!<333 last question and ill be done. I dont get it! :/ The volume of gas varies directly with temperature and inversely with pressure. Volume is 100 m^3 when temperature is 1508 degrees. and pressure is 15 lb/cm^2 what is the volume when the temperature is 2508 degrees and the pressure is 20 lb/cm^2 ?

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  1. ZeHanz
    • 3 years ago
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    You have to convert the sentences to a formula:\[V=c \frac{ T }{ p }\] Put in the numbers of the first situation to calculate the constant c. Then put in the numbers of the second situation. You can calculate V now.

  2. hannahbabiexoxo
    • 3 years ago
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    :D thanks

  3. ZeHanz
    • 3 years ago
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    Hope you understand now...

  4. hannahbabiexoxo
    • 3 years ago
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    kinda. Well, i do have a question. the constant C part. im kinda stuck o.o

  5. hannahbabiexoxo
    • 3 years ago
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    im kinda just stuck at how to plug in this first situation. from there ill be ok.

  6. ZeHanz
    • 3 years ago
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    First situation:\[100=c \frac{ 1508 }{ 15 }\]You can get c by multiplying both sides with 15 and divide by 1508.

  7. hannahbabiexoxo
    • 3 years ago
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    thanks. alright, let me try this.

  8. hannahbabiexoxo
    • 3 years ago
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    by both sides you mean the 100 too right? Sorry. I ask so many questions lol D:

  9. ZeHanz
    • 3 years ago
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    Yes!

  10. hannahbabiexoxo
    • 3 years ago
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    ok well, i did that. Now...i dont divide that part by the 1508 right? :/ like i multiplied the 100 by 15 and got 1500

  11. ZeHanz
    • 3 years ago
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    c=100*15/1508=1500/1508 or about 0.9947

  12. hannahbabiexoxo
    • 3 years ago
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    yes, i did that. so thats not wrong? I get nervous about math and i thought i did it wrong o.o ah good, so then, from there...

  13. ZeHanz
    • 3 years ago
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    So now try putting the new numbers in!

  14. hannahbabiexoxo
    • 3 years ago
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    ok!

  15. hannahbabiexoxo
    • 3 years ago
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    i put the new numbers in the formula right?

  16. ZeHanz
    • 3 years ago
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    Uhuh

  17. hannahbabiexoxo
    • 3 years ago
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    do i do anything with the number i just got. and the new number i got was the constant c right? would i just plug it in like, v=2508/20 or do i put the c in too.

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