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anonymous

  • 5 years ago

Susan' rope is three times as long as Fred's rope. Fred's rope is twice as long as Alison's rope. The total length of all three ropes is 36 meters. How long is Fred's rope?

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  1. bahrom7893
    • 5 years ago
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    S = 2F; F = 2A S + F + A =36

  2. bahrom7893
    • 5 years ago
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    F = 2A and S = 2F => S = 4A

  3. anonymous
    • 5 years ago
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    Don't understand

  4. bahrom7893
    • 5 years ago
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    S = 4A, F = 2A 4A + 2A + A = 36

  5. bahrom7893
    • 5 years ago
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    Okay so let S be the length of sally's rope

  6. bahrom7893
    • 5 years ago
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    F - fred's A - alison's

  7. anonymous
    • 5 years ago
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    okay

  8. bahrom7893
    • 5 years ago
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    Woops meant not S = 2F, its S = 3F (Three times as long as fred's)

  9. bahrom7893
    • 5 years ago
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    S = 3F F = 2A A S + F + A = 36 (total length)

  10. bahrom7893
    • 5 years ago
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    S = 3F, but F = 2A => S = 3*2A = 6A

  11. bahrom7893
    • 5 years ago
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    So you have: S = 6A F = 2A A = A (A is just A) S + F + A = 36 6A + 2A + A = 36

  12. bahrom7893
    • 5 years ago
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    9A = 36 = > A = 4

  13. bahrom7893
    • 5 years ago
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    F = 2A = 2*4 = 8 meters => Fred's rope is 8 meters long, please click on become a fan if I helped, thanks!

  14. anonymous
    • 5 years ago
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    WHAT IS SUSAN'S LENGTH thANK yOU sUPERHERO, WILL DO

  15. bahrom7893
    • 5 years ago
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    Susan's: S = 6A = 6 * 4 = 24 meters

  16. anonymous
    • 5 years ago
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    hOW DO i BECOME A fAN

  17. bahrom7893
    • 5 years ago
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    Click on Become a fan next to my name (in blue)

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