Since they are different people with different thoughts and knowledge giving them to choose different numbers all though two of them might choose the same number
Answer:
- x = 10
- B. 3/7
Step-by-step explanation:
1. (x - 2)/ 4 - (3x + 5)/7 = - 3
7(x -2) -4(3x +5) = -84 . . . . . . . multiply by 28
7x -14 -12x -20 = -84 . . . . . . . . eliminate parentheses
-5x -34 = -84 . . . . . . . . . . . . . . collect terms
-5x = -50 . . . . . . . . add 34
x = 10 . . . . . . . . . . . divide by -5
__
2. 1/(1 + 1/(1 - 1/x)) = 4
1 = 4(1 +1/(1 -1/x)) . . . . multiply by the denominator
-3 = 4/(1 -1/x) . . . . . . . eliminate outer parentheses, subtract 4
-3(1 -1/x) = 4 . . . . . . . multiply by the denominator
-3 +3/x = 4 . . . . . . . . eliminate parentheses
3/x = 7 . . . . . . . . . . . add 3
x = 3/7 . . . . . . . . . . . multiply by x/7
Answer: 
Step-by-step explanation:
Given : 1 calorie= 4.184 joules
A food calorie = 1000 calories = 4184 joules.
Then, 2000 food =
joules [By Unitary method]
We know that : 
Since 1 day = 24 hours
and 1 hour = 3600 seconds
Then, 24 hours =
seconds.
Now, 

Hence, the average power of this intake = 
This means that you have to move the decimal point 4 decimal places to the left, as denoted by the negative sign. Thus, this would add 3 zeros before 5. The answer would be 0.00059.
I hope the explanation was clear to you. Have a good day.
Answer:
H= 11
Step-by-step explanation:
231 = h x 7 x 3
231 = 21h
/21 /21
H=11