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tootsi123

  • one year ago

Can anybody hep me with the formula.... I think i can solve it with the formula

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  1. tootsi123
    • one year ago
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  2. jim_thompson5910
    • one year ago
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    |dw:1440104903163:dw|

  3. jim_thompson5910
    • one year ago
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    |dw:1440104992744:dw|

  4. tootsi123
    • one year ago
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    So would i do 4/x

  5. jim_thompson5910
    • one year ago
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    The figures are similar which means that each side of the smaller figure is multiplied by some number to get the length of the corresponding side in the larger figure eg: AB is multiplied by some number k to get the length of JK |dw:1440105113878:dw| AB*k = JK 3*k = 4.2 what is the value of k ?

  6. jim_thompson5910
    • one year ago
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    yes you can also set up a proportion identify a pair of corresponding sides (one pair has LM = x in it) CD corresponds to LM BC corresponds to KL so we have this proportion CD/LM = BC/KL 4/x = 1/1.4 then solve for x

  7. tootsi123
    • one year ago
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    \[\frac{ 4 }{ x }= \frac{ 1 }{ 1.4 }\] cross multiply 4 time 1.4 = 5.6 x=1 am i right so far

  8. jim_thompson5910
    • one year ago
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    x = 1 is incorrect

  9. jim_thompson5910
    • one year ago
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    but you have 5.6 as part of your work. I think you meant to say x = 5.6 ?

  10. tootsi123
    • one year ago
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    Oh okay. the length of LM is 5.6 got it

  11. jim_thompson5910
    • one year ago
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    yep, x = 5.6 is correct

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