type the correct answer in each box. use numerals instead of words. students in a reading class have three…

type the correct answer in each box. use numerals instead of words. students in a reading class have three options for their book project: making a brochure, writing a news article, or designing a computer presentation. from past years, the teacher has determined that 20% of students usually choose to make a brochure, 30% of students usually choose to write a news article, and the remaining students usually choose to design a computer presentation. if the teacher uses 20 colored chips in three different colors to model this situation, how many colored chips should she use to represent each book project option? making a brochure: blue chips writing a news article: yellow ships designing a computer presentation: red chips
Answer
Explanation:
Step1: Calculate number of chips for brochure
The percentage of students choosing brochure is 20% and there are 20 chips in total. So the number of chips for brochure is $20\times0.2$. $20\times0.2 = 4$
Step2: Calculate number of chips for news - article
The percentage of students choosing news - article is 30%. So the number of chips for news - article is $20\times0.3$. $20\times0.3=6$
Step3: Calculate number of chips for computer presentation
First, find the percentage of students choosing computer presentation. It is $1-(0.2 + 0.3)=0.5$. Then the number of chips for computer presentation is $20\times0.5$. $20\times0.5 = 10$
Answer:
making a brochure: 4 blue chips writing a news article: 6 yellow chips designing a computer presentation: 10 red chips