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RSB [31]
3 years ago
15

PLEASE SHOW WORK ASAP

Mathematics
1 answer:
Ludmilka [50]3 years ago
5 0
4/d = 2/6
4*6= 2*d
24=2d
d=12

(r-3)/10=r/13
13(r-3)=10r
13r-39=10r
3r=39
r=13
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