9.81 times 10 to the -5th power
7/8*8/9 = (7*8)/(8*9)
Since we have an 8 both above and below, we can erase it, and so the answer is 7/9
3x + 4y = 31
2x - 4y = -6
*The +4 and -4 in the center of the equation cancel out because 4-4 = 0*
3x = 31
2x = -6
------------
*add like terms*
3x + 2x = 5x
31 - 6 = 25
So now you should have this written on your paper ... > 5x = 25
*Divide by 5 on each side*
5x = 25
_ _
5 5
x = 5
Ummm is this a full question?
Answer:
Step-by-step explanation:
Possible:
Rolling a 1
Rolling a number less than 7
Rolling an even number
Impossible:
Rolling a number greater than 10
Rolling an 8
