kieante01 kieante01

03-06-2017
Mathematics

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PLZZZZ NEED HELP!!!!!

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Respuesta :

jamiexx jamiexx

04-06-2017

use simultaneous equations
a + c =6 (1)
45a + 15c = 150 (2)
from (1)
c = 6-a (3)
sub 3 into (2)
so the answer is 45a + 15(6-a) = 150, so is B

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