Answer:
1, 2, 4, 6, 7, 8 (starting from top)
Step-by-step explanation:
for it to be scientific notation, the number has to be between 1 and 10. Hope it helps
Answer:
1) (2, 3)
2) (2, -5).
Step-by-step explanation:
2x – y = 1
2x +2y = 10 Subtract to eliminate the 2x:
2x - 2x - y - 2y = 1 - 10
-3y = -9
y = 3.
Plug this into the first equation:
2x - 3 = 1
2x = 4
x = 2.
2)
5x – y =15
x + y = -3 Adding to eliminate y:
5x + x - y + y = 15 + -3
6x = 12
x = 2
Plug this into the first equation:
5(2) - y = 15
-y = 15 - 10 = 5
y = -5.
Answer:
x = -11
Step-by-step explanation:
Because 3 x -11 = -33 and
8 -(-33 = 41
Step-by-step explanation:
37 x 10^2 = 3700
Total number of marbles in the bag is 28+49=77
Ratio of red in total can be written as:
49/77
We can simplify this by dividing both by 7.
Once we do that we have:
7/11
That means that the answer is A)