The method for working out how much they each paid is incorrect, lets look at it from a different perspective.
The 3 guys paid him $30, now he gives back $5 to the guys.
So there is $25 with the owner and $5 with the bell boy.
Now the bell boy keeps $2 and gives back $3, $1 to each of the guys.
So there is $25 with the owner, $2 with the bell boy and $3 with the guys.
Now indeed the guys paid $30 - $3 which is $27 dollars, but we can see that that is now split between the owner and the bell boy as $25 + $2 = $27 dollars.
they sell 4 and more than10 for a total of at least 14 tons
the mine extracts 2 ton per hour
so 14/2 = 7 hours a day minimum
so the inequality should be x>7
Answer:
4/75 or 0.05333
Step-by-step explanation:
3+4+2+6=15 elements
2/15= probability to choose a black
6/15 = probability to choose a yellow cube
Probability to choose a black AND (*) a yellow = 2/15*6/15=12/225=4/75 or 0.05333
The formula for solving the area of a regular decagon is shown below:
A=(5/2)a²√(5+2√5)
where "a" refers to the measurement of the side on which in this problem, it is equal to 9.3 units
We can proceed in solving for the area and the solution is shown below:
A=(5/2)*(9.3)²√(5+2√5)
A=665.47 square units
The answer is 665.47 square units.
