Children 13 and younger make up 1/5 of the population in the U.S. What percentage of the population is older than 13
A.80%
B.60%
C.40%
D.20%
D?
According to a survey 3 out o5 5 students bring their own lunch to school. What percent of students bring lunches
A.35%
B.40%
C.45%
D.60%
D?
Your first is wrong; the second is right.
How do I solve it?
1/5 = 20% of the population is under 13. Your question asks "What percentage of the population is older than 13?"
80%?
Right!
For the first question, the percentage of children 13 and younger is given as 1/5 of the population. To find the percentage of the population that is older than 13, we subtract the percentage of children from 100% since the total population adds up to 100%.
So, the percentage of the population that is older than 13 would be 100% - 20% (1/5 as a percentage) = 80%.
Therefore, the correct answer is A. 80%.
For the second question, we are told that 3 out of 5 students bring their own lunch to school. To find the percentage of students who bring lunches, we need to divide the number of students who bring lunches (3) by the total number of students (5) and then multiply by 100%.
So, the percentage of students who bring lunches would be (3/5) * 100% = 60%.
Therefore, the correct answer is D. 60%.