3/4=6/8, 1/4=2/8, 5/8=5/8, 1/2=4/8.
6/8 + 2/8 + 5/8 + 4/8 = 17/8
17/8 = 2 1/8
The answer is A: 2 1/8
Distribute
remember a(b+c)=ab+ac
8(y+4)=8(y)+8(4)=8y+32
8y+32=7y+38
minus 7y both sides
y+32=38
mius 32 oth sides
y=6
-- The person in the audience will either win tickets or not win tickets.
-- The probability of (either win tickets or not win tickets) is 100%.
-- (Probability of win tickets) plus (probability of not win tickets) = 100%.
-- If (probability of win tickets) is 15%, then the (probability of not win tickets)
is the other 85%.
