If 9a = 16b what is (4a + 6b)/(15a - 16b)
Select the correct option.
A) 3
B) 4
C) 5
D) 59/48
E) 11
4a + 6b )/( 15a - 16b )   = (4a + 6b)/(15a - 9a) (because 9a = 16b)   = (4a + 6b)/6a   = 2/3 + b/a   = 2/3 + 9/16 (because 9a = 16b, so b/a = 9/16)   = (32+27)/48   = 59/48   ANSWER:59/48
<result>D</result>
If 9a = 16b what is (4a + 6b)/(15a - 16b)