Answer:
Determine whether the equation has the form x=a, and if it does, the equation has one solution.
Any number in between -21 and -20 would suffice in this case. If there are no other conditions, let's claim that Stan's bank account balance is -20.75
Answer:
(4,-3)
Step-by-step explanation:
Multiplying the bottom equation by -6, we get -6x+12y=-60.
Adding this to the first equation gives 15y=-45, and thus y=-3.
So, it follows that 6x+3(-3)=15, and thus x=4.
Answer:
10 is the evaluated answer.
Answer:
-1.75.
Step-by-step explanation:
The z-score = (n - m) / d where n is the value (13) m = mean and d = standard deviation.
= (13 - 20) / 4
= -1.75 (answer)
