In the figure below, ratio of AB to DE or the ratio of AC to DF is proportional to the ratio of 5 to 2. Which x + y?
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this might help you out!
:) LOL it's been years since i've done these! i'm in calc 3 now! what math is this again?
that was 9th grade for me! i'm a senior now! which grade iz it 4 u?
wow! have you already done any calc?
nope i just do the maths they give me
math is not my subject ill take english any day
kul! LOL! i got to the local community college full time, and i've been going since 15! i've gotten alot of math in! english is alright! not my strong subject, but... yanno! it's kul!
i just need to hurry up and graduate so i can focus on my pregnancy. And this question is being a pain in the retricecause i cant figure it out and its starting to make me mad
My answer is x=40 and y=28. My reasoning is probably flawed, but here goes! The ratio between DE and FD is 16/20, so, if these two triangles are to scale, then we need to find an x and a y that will give us the same ratio of 16/20 (or 4/5.) therefore, 40-12 = 28, and 28+7 =35. 28/35= 4/5. That’s my hypothesis! Don’t count it as gold tho! Does that help any? Good luck with your pregnancy!
Given: AB is to DE as AC is to DF as 5 is to 2.
AB/DE = AC/DF = 5/2
(x-12)/16 = (y + 7)/20 = 5/2
(x-12)/16 = 5/2
2x -24 = 90
x = 57
(y+7)/20 = 5/2
2(y+7) = 5*20
2y + 14 = 100
2y = 86
y = 43