Answer:
idk
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
given the 2 equations
x + y = 0 → (1)
5x + 3y = - 8 → (2)
Rearrange (1) expressing x in terms of y by subtracting y from both sides
x = - y → (3)
Substitute x = - y into (2)
5(- y) + 3y = - 8, that is
- 5y + 3y = - 8
- 2y = - 8 ( divide both sides by - 2 )
y = 4
Substitute y = 4 into (3) for corresponding value of x
x = - y = - 4
Solution is (- 4, 4 ) → C
Answer:
m = 1.2
Step-by-step explanation:
12m = 14.4
Divide each side by 12
12m/12 = 14.4/12
m = 1.2
Answer:
1/3 = 0.333
You can use a calculator and it should come out into a decimal.
Note:
/ = divide
First find the rate or common difference if it exists.
(123-13)/(12-1)
110/11
10 So this essentially form an arithmetic sequence because each term is a constant difference with respect to the previous term.
The sum of an arithmetic sequence, in simplest terms, is the average of the first and last terms times the number of terms, in this case:
(12-1+1)(13+123)/2
12(68)
816
So the player will have matched 816 gems in total for the twelves rounds.