a* equals

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a* equals

by sanju09 » Sun Apr 11, 2010 11:48 pm
If a* = (2 a + 6)/4, and a = 3 b + 1, then a* equals
(A) 0.5b + 1.5
(B) 1.5b + 2
(C) 1.5b - 2
(D) 6b + 7
(E) b - 1/3
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by thephoenix » Mon Apr 12, 2010 12:29 am
(2a+6)/4=(a+3)/2=(3b+4)/2=1.5b+2

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by greentealeaf » Wed Apr 14, 2010 7:08 am
sanju09 wrote:If a* = (2 a + 6)/4, and a = 3 b + 1, then a* equals
(A) 0.5b + 1.5
(B) 1.5b + 2
(C) 1.5b - 2
(D) 6b + 7
(E) b - 1/3
simply replace a and solve the question