The answer to the equation 1/3(6x-15)= 1/2(10x-4) is D. -1
2 yellow marbles, 7 red marbles, 1 green marble.....total of 10 marbles
probability of first picking a yellow marble : 2/10 reduces to 1/5
replacing the marble
probability of picking another yellow marble : 2/10 reduces to 1/5
probability of both is : 1/5 * 1/5 = 1/25 <==
3 pairs cost $165
165/3 = 55
1 pair cost $55
Eleven pairs would cost 11(55) = $605