Answer:
The number must be a negative integer because -4+ any negative is a negative
Step-by-step explanation:
Answer:
out of 36 rolls, 15 were positive. 15/36 simplified is 5/12
So solve for q
first factor q out of the summation

now, determine what the summation is

its been a while since ive done summations so i dont remember any tricks but that summation is essentially equal to

or factored to be something like this

which i believe there's a formula for
regardless using a calculator, the summation turns out to be 4/3 i think
you should definitely double check this step
so replacing the summation for 4/3, the equation is now
q*(4/3) =8
pretty easy to solve from here
divide 4/3 to both sides to get q
any questions?
Answer:
x+2y=12
Step-by-step explanation:
I used DESMOS graphing calculator. I highly recommend it for problems like this.