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I got D. 7.5 because the sides are in a 4 to 1 ratio. The corresponding side of 40 on the smaller triangle is 10 and 40/10 is 4. to find the corresponding side of 30, do 30/4 and you get 7.5

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IPMATH IPMATH · Answer 2 · 2017-03-18T23:21:48-04:00

IPMATH IPMATH

18-03-2017

The figures are similar, therefore they have corresponding proportional sides. So, match up the corresponding sides and set up a proportion.

40/30 = 10/x

cross multiply and divide to get 7.5

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Please help, how would I solve this?Which letter is the correct answer?Thanks!!!

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Please help, how would I solve this?

Which letter is the correct answer?

Thanks!!!