Seudónimo Seudónimo
  • 15-06-2020
  • Mathematics
contestada

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 :

lduck lduck
  • 15-06-2020
create a ratio and cross multiply

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

hope this helps :)
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