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nynic819 Group Title

3 questions for diagram. 1. What is the ratio of corresponding sides? f. 8 to 4 g. 3 to 8 h. 8 to 10 j. 10 to 4

  • one year ago
  • one year ago

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  1. nynic819 Group Title
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    |dw:1365387522887:dw|

    • one year ago
  2. dave0616 Group Title
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    its gonna be f (8:4) because you arent given a value for side x, and because the problem is asking for ratios, the only usable information is the side of the larger triangle (8) and the side of the smaller triangle (4).

    • one year ago
  3. nynic819 Group Title
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    2. Which proportion can you use to find the length of side X?

    • one year ago
  4. nynic819 Group Title
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    What is the length of side x?

    • one year ago
  5. nynic819 Group Title
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    Thank you so much for your help. You explaining is helping. I hope I can do on the test tomorrow.

    • one year ago
  6. dave0616 Group Title
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    The proportion for the entire triangle will be the same, since you are having trouble with this I will walk you through it instead of giving you the answer. So we found that the ratio of the side is 8:4, and because the triangles are proportionate to each other (meaning that they have the same side lengths and angles, the only thing is that one is larger than the other based on a multiplicative factor) the entire triangle will have the same multiplicative factor across each side. So lets figure out an equation to use. We found that the one side is 8:4. Now what would the ratio be when trying to find x? And use x in place of the number, because obviously we do not know it yet. And anytime! I'm on here to help out!

    • one year ago
  7. nynic819 Group Title
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    10 to x ?

    • one year ago
  8. dave0616 Group Title
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    That is correct, and since the multiplicative factor in the 8:4 will be the same in the 10:x ratio, what is the multiplicative factor in the 8:4 ratio?

    • one year ago
  9. nynic819 Group Title
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    2 Not sure what multiplicative factor means.

    • one year ago
  10. dave0616 Group Title
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    you got it exactly, multiplicative factor is just a fancy way of saying what is the smaller one multiplied by to equal the bigger one. I'm sorry for the confusion. So that factor will be the same for the all the sides on each triangle. So if 10 and 8 are on the larger triangle, and 4 and x are on the smaller triangle, and the factor is 2 for both ratios (8:4 and 10:x), do you think you could figure out x using that information?

    • one year ago
  11. nynic819 Group Title
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    5?

    • one year ago
  12. dave0616 Group Title
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    or another way you can think about it is like this: 8/4= 2 10/x=2 \[2*x=10\] 10/2=5 So yes, your answer of 5 is correct

    • one year ago
  13. nynic819 Group Title
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    YAY!!!

    • one year ago
  14. nynic819 Group Title
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    Multiple choice answers so it should read \[\frac{ x }{ 10} = \frac{ 8 }{ 4 } \]

    • one year ago
  15. dave0616 Group Title
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    @electrokid what are you referring to? i gave her answers as to the options available, I simply expanded on them and tried my best to explain what the option was saying

    • one year ago
  16. nynic819 Group Title
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    That is for the second question.

    • one year ago
  17. nynic819 Group Title
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    Dave0616 you explained perfect. It helped me understand what I am doing.

    • one year ago
  18. dave0616 Group Title
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    @electrokid She is iimediately answering with the next question because if you actually read my answers I am helping her along, trying to get her to answer the question and think about what the next thing she should do is, not just straight out give her the answer. And again, if you read the entire post you would realize that she has a test tomorrow, and has to be able to do this without mine or anyone elses help, so I am trying to get her to do it on her own so that she can remember it tomorrow.

    • one year ago
  19. dave0616 Group Title
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    @electrokid I am satisfied, so thanks for taking it back. and @nynic819 I'm glad that I could help

    • one year ago
  20. nynic819 Group Title
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    I am. Dave0616 is helping me understand how to do it and not just giving me the answers. A big help :)

    • one year ago
  21. nynic819 Group Title
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    Last question. I just need to know how it is written for the proportion. Multiple choice answers so it should read x10=84

    • one year ago
  22. nynic819 Group Title
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    no that was mistyping

    • one year ago
  23. dave0616 Group Title
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    I was gonna say, shouldnt it be x:10 = 4:8?

    • one year ago
  24. nynic819 Group Title
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    \[\frac{ x }{ 10 } = \frac{ 8 }{ 4 }\]

    • one year ago
  25. nynic819 Group Title
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    \[\frac{ 4 }{ 8 }\]

    • one year ago
  26. nynic819 Group Title
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    Sorry just want to make sure I know what I'm doing.

    • one year ago
  27. dave0616 Group Title
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    alright, so i am unclear as to what your question is. But my understanding of your question is that it can be written 5:10=4:8 And just in case your teacher decides to throw you a curveball and write it like i have written it, it is the same thing as saying: \[\frac{ 5 }{ 10 }=\frac{4}{8}\]

    • one year ago
  28. dave0616 Group Title
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    Oh no you are perfectly fine, and the placement of each number in the equation i have just written doesnt matter, with one stipulation. That stipulation is that one triangle corresponds to either the denominator or the numerator. meaning that 10/5 = 8/4 is the same thing as the previous equation. BUT REMEMBER THAT IS ONLY FOR DOING RATIOS!!!!

    • one year ago
  29. nynic819 Group Title
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    the second question didn't ask for x. But yes that has answered my question.

    • one year ago
  30. dave0616 Group Title
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    ohhhhh ok ok, but you have the information you need now?

    • one year ago
  31. nynic819 Group Title
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    Yes I do and I'm gonna print this out so I have it to work with. Thank you again :)

    • one year ago
  32. dave0616 Group Title
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    absolutely no problem at all, that is what i am here for!

    • one year ago
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