Answer:
So, the number of combinations is 57600.
Step-by-step explanation:
From Exercise we have
5 different history textbooks
4 different science textbooks
For the place in the middle we have 4 books so the number of combinations for that place is 4.
For the places at the end of the shelf I have 5 books, I need 2, so the number is a combination:
2· \frac{5!}{(5-2)!·2!}=2·10=20
For the 6 places on the shelf I have 6 books so the number is a combination 6!=720
So, the number of combinations is:
4·20·720=57600.
Answer:
50 ft.
Step-by-step explanation:
It is given that the ratio of width-to-length is 2 : 5.
Let,
Width = 2x ft
Length = 5x ft
Perimeter of the rectangle is
It is given that the perimeter of the rectangle is 140 ft.
Divide both sides by 14.
The value of x is 10.
Therefore, the length of the rectangle is 50 ft.
You will have to make the question more clear because there is no addition, subtraction in between the 4x and 3y or is the space for multiplication and there is no sign in between -2x and 2y.
Answer:
250%
Step-by-step explanation:
Hi there!
In order to solve this problem, we have to divide 200 by 80.
When we do this, we get 2.5. The number in the ones spot, in this case 2, would be worth 200%.
Now we have the 0.5
A half is equivalent to 50%, so we add those two percentages together to get 250%.
I hope this helps!
Answer:
<u>G 33%</u>
Step-by-step explanation:
17/52 = 0.32692307692
0.32692307692 is about 33 %
Have a nice day! :)