40 total spins
it landed on H 15 times which equals 15/40
15/40 reduces to 3/8
the answer is C 3/8
-2/3a-6=12a
-6=12a+2/3a
-6=38/3a
3/38*-6=a
-18/38=a
a=-9/19
a=-0.47
To get the equivalent you have to half the denominator and the numerator so therefore it is 1/5 as you divide it by 2.
The answer:
(-11,-4) and (8,11/2)
All you do is divide the second equation by y and set them equal to each other. Then solve for y and you get a quadratic. Just solve that and u get the answer.
