Answer:
x=7, y= 8
Step-by-step explanation:
x+y=15
x+2y=23
Subtract the first equation from the second equation to eliminate x
x+2y=23
-x-y=-15
--------------------
y = 8
Now we can find x
x+y = 15
x+8 = 15
Subtract 8 from each side
x+8-8=15-8
x = 7
Y = x - 6
x = -4
plug in the second equation in to the first
y = -4 - 6
y = -1(4 + 6)
y = -1(10)
y = -10
The solution to the system is not listed in the options. The correct solution is (-4, -10).
Answer:
5850 miles
Step-by-step explanation:
150 X 39 = 5850
We multiple because it says Joanna ran 39 more TIMES than Jack.
Joanna ran 5850 miles.
Answer:
D
Step-by-step explanation:
To be an arithmetic sequence, the numbers have to be added or subtracted by a constant number. D is not the answer because -2+6 equals 4, but 4+6 doesn't equal -6, so D cannot be a arithmetic sequence.
To answer this specific
problem:
A
sample size of 5 for which the sample mean is 20 and the sample
median is 15 would be 9, 12, 15, 25, and 39. I am hoping that this answer has
satisfied your query and it will be able to help you in your endeavor, and if
you would like, feel free to ask another question.