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anonymous
 one year ago
Douglas has a segment with endpoints I(5, 2) and J(9, 10) that is divided by a point K such that IK and KJ form a 2:3 ratio. He knows that the distance between the xcoordinates is 4 units. Which of the following fractions will let him find the xcoordinate for point K?
A. 2/3
B. 2/5
C. 3/2
D. 3/5
anonymous
 one year ago
Douglas has a segment with endpoints I(5, 2) and J(9, 10) that is divided by a point K such that IK and KJ form a 2:3 ratio. He knows that the distance between the xcoordinates is 4 units. Which of the following fractions will let him find the xcoordinate for point K? A. 2/3 B. 2/5 C. 3/2 D. 3/5

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jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1441683778817:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1441683820093:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1do you have something like this as your drawing so far?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0No, because I wasn't sure how to even start it.

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1do you agree with the drawing?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1ok at this point, I'm stuck because I'm trying to figure out what they want exactly. Let me think

madhu.mukherjee.946
 one year ago
Best ResponseYou've already chosen the best response.0use the distance formula

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1let's try this cut the horizontal distance into 5 equal pieces dw:1441684123914:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1the first 2 pieces will come from the ratio 2:3 so this is where K is located dw:1441684195848:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So, does that mean that the answer is C?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1let's see, if we cut that 4 into 5 equal parts, each piece is 4/5 dw:1441684366181:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so 2*(4/5) = 8/5 dw:1441684402390:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So does this mean that it's 3/5 now?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1I'm wondering if they want you to set up a proportion. Have previous problems used proportions at all before?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1ok I'm thinking maybe you'd have a proportion in the form a/b = c/d the right side would be 2/5 because we go 2 parts over to get to the x coordinate of K, out of 5 parts total so we'd have a/b = 2/5 I'm not 100% sure on this one though

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay, I guess that's what I'll go with.
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