If we place the books using their width on the length of the book shelf then
each book occupy the length : 9.3* 10^-2 meter on the length of the book shelf .Here width of book and length of book shelf is in same unit , that is meter . so we do not have to do any work with changing the unit .
number of books = length of the book shelf divide by width of the book
That is : 1.865 x 10 ^1 divide by 9.3x 10^-2 = 200.53
Because number of books placed can not be a decimal number so we would place only 200 books
Answer :200 books . Option A is correct .
Remember you can do anything to an equation as long asyou do it to both sides
4x+2(x-3)=3x+x-12
distribute and expand
4x+2x-6=4x-12
6x-6=4x-12
minus 4x both sides
2x-6=-12
add 6 both sides
2x=-6
divide by 2
x=-3
A is the answer
Step-by-step explanation:
the answer would be
4
2
1
3
5
31 people, you do 324-200=124 and divide 124 by 4 and get 31 people