You would use the formula nCr
n= 5 which is the number of letters available which are D E F G H
r= 4 sample of letters
you can easily plug into the calculator... or work with the formula!
5C4 = 5
so there are 5 combinations
Answer:
Percent or percentage or
%
means "per 100" or "out of 100". Therefore
12.3
%
=
12.3
100
.
So 12.3% of 129 pounds is:
12.3
100
⋅
129
1586.7
100
15.867
hops this help ✨
7 centimeters
First, you have to set up an equation using the formula for area of a rectangle:
L x W = H. Then, plug in what you know: 8 x W = 56. Then, solve for x by dividing 56 by 8: W=7.
From what I got there is one real solution :)
Rearrange the second equation to give y=2-2x, substitute into the first equation to give you a value for x and then using that you can work out y for the exact coordinates of intersection :)
Also they are both straight line graphs so they will either have one or no solutions
Hope this helped :)
