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Lschin asked Sep 3, 2022

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Mathematics
college

Lschin asked Sep 3, 2022

by Lschin

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15 votes

Answer:

7.5

Explanation:

Triangles: RST and RPQ are similar so

Triangle RST has 12.5 and x

Triangle RPQ has 20 (comes from 12.5+7.5) and x+4.5

Therefore you divide

x/x+4.5 = 12.5/20

20x= 12.5x+56.25

7.5x=56.25

x=7.5

Ragul answered Sep 9, 2022

by Ragul

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