Answer:
answer B: (2,-2)
Step-by-step explanation:
First, write the equations on top of each other:
Then, multiply the the second equation by 2 so that we can use elimination of the y-variable:
Next, use elimination to find the value of "x":
So, your x-value is 2.
Now, substitute your x-value into one of your equations, let's take the second equation, 2x-y=6:
Your y-value is -2.
With all your information gathered, you find that the solution to this system of equation is (2,-2).
I would either use a histogram or a frequency chart, but histogram is easier and neater
Answer:
20x+21y+14
Step-by-step explanation:
Combine like terms:
150x-80y+50-50x-25y+20=
100x-80y+50-25y+20=
100x-105y+50+20=
100x-105y+70
100x-105y+70 can be divided by 5 and get 20x+21y+14.
The answer to your question is option a
Mean means the average so you plus all the scores and divide that by the number of scores and when to undo that, the answer you get is a
Answer:
80 KPH
Step-by-step explanation:
The total trip was 280*2 (the trip to perry and then to come back home)
divide this by the 7 hours it took him, and you get your answer. Enjoy!
