Mathematics, 16.10.2019 02:30, candigirl8847

Kyra observed that 85% of the students at the library like to read mystery stories. if 30 students at the library did not like reading mystery stories, the number of students at the library who like mystery stories was (only numeric values, no other symbols)

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Set this up as a proportion. If 85% of students like to read mysteries, that means that 15% don't. Therefore, if 30 students don't like mysteries, then 30 students account for 15% of the total number of students. Set it up as a ratio where 30 students = 15% and X students = 85%. Of course in order to use percentages in an equation we have to change them to decimals, .15 and .85 respectively. Then set up the ratio keeping the number of students in alignment and then the percentage of students in alignment (cuz % is not the same as the number of students.) Like this:
$\frac{students}{percent}: \frac{30}{.15} = \frac{x}{.85}$
Now we cross-multiply to get .15x = 25.5 and x = 170. That means that 170 students like to read mysteries and that also means that 170 accounts for 85% of the total number of students (which is 200).

answered: Guest

the clues that signal the reader should change tone are the punctuation marks, the grammatical signs. for example, the quotation marks at the beginning of something someone else said literally or the exclamation marks.

the tone of the first line of dialogue until "gettysburg" is a kind tone, a tone of advise. the narrator is trying to the other person in doing something he or she obviously is finding hard to do by giving a piece of advise and bringing up a memory of a successful similar case.

the clue that the reader understand how to read the word "bang" is the exclamation mark. it gives the word a surprise tone, a strong accent.

the best tone for reading the word "bang" is an exciting tone, a surprise one, even a loud one.

the words that should be read with a formal tone are the ones that give factual information. the sentence: mister lincoln couldn't think of anything to say at the gettysburg" gives information about an event and it needs to be read formally, also, when the narrator wants to transmit calmness, a formal and slow tone is needed, because people also transmit messages with the vibrations of our voices and tones.

answered: Guest

step-by-step explanation:

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Kyra observed that 85% of the students at the library like to read mystery stories. if 30 students a...