Seudónimo Seudónimo

15-06-2020
Mathematics

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PLEASE HELP FOR A COOKIE

If the ratio of RS/ST=5/7, find the value of x, RS, RT.
RS=2x+9
ST=4x-15

Respuesta :

15-06-2020

create a ratio and cross multiply

20x - 75 = 14x + 63
6x = 138
x=23

hope this helps :)

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