Answer: 
hours
Step-by-step explanation:
Let x be the time ( in hours ) you feel good and y be the time ( in hours ) that you get tired.
As per given , we have
x+y= 8
Since : 
So , we have
20x+12y=122
According to the given question , we have the following system of equations ,
Multiply 12 on both sides of equation (1) , we get
Eliminate equation (3) from (2) , we get
Hence, you felt hours good.
4,680 I do it like this 50 percent is 3600 then 10 percent is 720 and 5 percent is 360 add then you get 4,680
C is the correct answer 3.785*2.5=9.4625 then multiply by 1000 and you get 9,462.5
3x-16x-24=-12x-30
-13x+12x=-30+24
-x=-6 /*(-1)
x=6
Answer:
Step-by-step explanation:
It seems you got the right answer, but didn’t do the problem correctly.
The square root of 2 times the square root of 2 is 2. And then 6 times the square root of two minus the product of 6 and the square root of two equals zero. And then obviously 6 and -6 equals -36. So 2+-36 is -34
