Answer:
yes
Step-by-step explanation:
y=3x + 1
y = -x+5
Check if (1,4) solves the first equation
4 = 3(1)+1
4 = 3+1
4=4
This is true
Check the second equation
4 = -1+5
4=4
This is true
(1,4) is a solution to the system of equations
To find the mean you add up all the numbers then divide the answer by the amount of numbers there are
in this case we add 28+ 18+ 19+ 18+ 17 then divide by 5
THE MEAN IS 20!!!
-HAVE A NICE DAY!!!
2 3/4 + 1 3/8 = 4.125 and there is your answer
Answer: 
Step-by-step explanation:
