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anonymous

  • one year ago

Help please? Douglas has a segment with endpoints I(5, 2) and J(9, 10) that is divided by a point K such that IK and IJ form a 2:3 ratio. He knows that the distance between the x-coordinates is 4 units. Which of the following fractions will let him find the x-coordinate for point K? 2 over 3 2 over 5 3 over 2 3 over 5

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  1. MrNood
    • one year ago
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    ok - suppose you had $10 and wanted to give it to 2 people in a ratio of 2:3 how would you divide it?

  2. anonymous
    • one year ago
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    Im not sure ive never been good at ratios so i dont know

  3. MrNood
    • one year ago
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    Ratios are about fractions To get the fractions you ADD together the 2 numbers in the ratio - that gives you the denominator If you want to divide $20 in a ration of 1:9 then add together the numbers then the fractions are 1/10 and 9/10 to give the ratio so $20 x 1/10 = $2 and $20 x 9/10 = $18 these are in ration 1:9

  4. MrNood
    • one year ago
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    so to get the ratio 2:3 write the 2 fractions by adding the numbers for the denominator

  5. anonymous
    • one year ago
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    would i add 4 to 2:3?

  6. MrNood
    • one year ago
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    Have a look at what I did above the ratio was 1:9 SO I ADDED 1+9 =10 The fractions were then 1/10 & 9/10 so do the same with the ratio 2:3

  7. anonymous
    • one year ago
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    So it would be 2/5 and 3/5

  8. MrNood
    • one year ago
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    yes - well done one of those is in the answers....

  9. anonymous
    • one year ago
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    would it be 2/5?

  10. MrNood
    • one year ago
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    are you confident with that? If so - go with it

  11. anonymous
    • one year ago
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    I dont knwo. Im never confident with math

  12. anonymous
    • one year ago
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    I guess ill go with it then thanks for your help

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