The first you can multiply first equation by 2, you will get 16x - 12y = - 40, then add first equation to second
16x - 12y - 16x + 7y = - 40 + 30
-5y = - 10
Y= 2;
Then put y to first equation, because it easier.
8x - 2*6=-20
8x = - 8
X= - 1
Answer is x = - 1, y = 2.
Givens
4 marbles (white, green, blue and orange)
1 box
1 coin with 2 sides.
Discussion
You can pull out one of 4 marbles and get either heads or tails.
Coin = 2 results.
Box = 4 results.
Total number of results - 2 * 4 = 8 results.
B <<<<< Answer.
Answer:
60n+36
Step-by-step explanation:
12*5n+12*3=60n+36
Answer:
add the numbers and divide by how many numbers there are, thats how you find the mean
Step-by-step explanation:
I think the answer would be B. 4 cm
