You add the equations together making sure one of the variables disappears by making one negative and one positive. In this situation y would alrady disappear 8x+y=-16
Answer:
45m/hr
Step-by-step explanation:
Divide 270 by 6 to determine the unit rate.

Therefore, the unit rate is 45 miles per 1 hour.
An exponential function grows faster than any polynomial function.
h(x) = 4^x
If A and B are independent, then P(A and B) = P(A) * P(B).
Then the probability that A occurs given that B occurs, for example, reduces to the probability that A occurs by itself:

So all you need to do is check that P(A|B) = P(A). If so, then A and B are independent. This is true only for the second case.
Answer:
36
Step-by-step explanation:
you add the first two the order of operations then you do big and little