Answer:
Multiple the first equation by -1
Step-by-step explanation:
After doing this you add the two equations together and follow the systems of equations as normal

Therefore y = 2
The answer would be B because the 100 stays in there and you are adding 8% per year. Hope this helps.
Answer:
-1/4
Step-by-step explanation:
-3/8 - 7/8= 4/8=1/2
Answer:
don't worry I'm on my way step bro ! where'd you get stuck ?! (;
Answer:
P(2 quarters) = 19/ (13*16) = 19/208 = 0.0913
Step-by-step explanation:
probability of getting 2 quarters?
ok
first draw: there are 20 quarters to choose from
second draw: there are 19 quarters left to choose
so Total coins are 65 coins
P(2 quarters) = P( 1st quarter)* P(2nd quarter)
P(2 quarters) = 20/65 * (19/64)
P(2 quarters) = 4/13 * 19/64
P(2 quarters) = 19/ (13*16) = 19/208