Answer:
(2,1)
Step-by-step explanation:
1 step: -2(4x+y=9)
3x+2y=8
2 step: -8x-2y=-18
3x+2y=8
3 step: -5x=-10
divide by -5 both sides
x=2
Now we solve for y
choose an equation from above and subtitute the x for 2.
3(2)+2y=8
6+2y=8
subtract 6 from both sides
2y=2
Y=1
Answer:
8
Step-by-step explanation:
Well 2x=16 is the same as x=8 when you divide by 2. So the dot should be on 8.
Answer: the 10th term is 4.1
Step-by-step explanation:
The sum is +0.4 each time.
1=0.5
2=0.9
3=1.3
4=1.7
5=2.1
6=2.5
7=2.9
8=3.3
9=3.7
10=4.1
Answer:6 apples cost exactly the same as 9 oranges. 10 apples and 10 oranges cost $7.50. Find the cost of 1 apple and the cost of 1 orange.
Step-by-step explanation:
Answer: (-1,3)
(0,1)
(1,-1)
(2,-3)
Step-by-step explanation: For example, you put -1 as x in the equation, and then solve, your answer would be the y, and the number you inputted would be the x.
