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hba

  • 2 years ago

y varies directly as the cube of x. when x=0.5, y =2.5.if y=540 then x equals.

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  1. hba
    • 2 years ago
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    @Praja_01

  2. hba
    • 2 years ago
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    @jim_thompson5910 Urgent help!

  3. hba
    • 2 years ago
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    @iNeedTheHelp

  4. jim_thompson5910
    • 2 years ago
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    y varies directly as the cube of x means y = kx^3

  5. jim_thompson5910
    • 2 years ago
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    when x=0.5, y =2.5 y = kx^3 2.5 = k*(0.5)^3 Solve for k

  6. hba
    • 2 years ago
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    Thanks a lot

  7. jim_thompson5910
    • 2 years ago
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    np

  8. hba
    • 2 years ago
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    @jim_thompson5910 k=2.5/0.025 < how to solve this without a calculator :D

  9. hba
    • 2 years ago
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    @jim_thompson5910 I got 100,what next ?

  10. hba
    • 2 years ago
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    @jim_thompson5910 ??

  11. jim_thompson5910
    • 2 years ago
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    you should have gotten k = 20

  12. hba
    • 2 years ago
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    I mean i got 20 what next

  13. jim_thompson5910
    • 2 years ago
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    y = kx^3 y = 20x^3 540 = 20x^3 Solve for x

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