Of the books in the library checked out last week, 16% were checked out monday, 24% were
checked out tuesday, 13% were checked out wednesday, 27% on thursday, and 20% on
friday. what fraction represents the ratio of books that were checked out on monday or
tuesday to the total number of books checked out last week?

Monday 4/25 and Tuesday 6/25.

Step-by-step explanation:

Let us assume that the total books in the library are 100%.

Now, 16% of the total books were checked out on Monday.  

Therefore, the fraction that represents the ratio of the books that checked out on Monday to the total number of books checked out last week will be  

16/(16+24+13+27+20) =4/25 (Answer)  

Again, 24% of the total books were checked out on Tuesday.  

Therefore, the fraction that represents the ratio of the books that checked out on Tuesday to the total number of books checked out last week will be  

24/(16+24+13+27+20) =6/25 (Answer)

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.