Question

can i get some help on this plzz i need to pass this
classs

Answer 1

what is it?

Answer 2

User: Egypt Ortiz
In Course: M/J Mathematics 2 V9 ( 2820)
Instructor: Amy Lamb

05.04 Solving Percent Problems by Solving Equations

Warning: There is a checkbox at the bottom of the exam form that you MUST check prior to submitting this exam. Failure to do so may cause your work to be lost.

Question 1 (Essay Worth 4 points)

twenty percent of what is 9? Jonas answered this question as shown. Explain his error and provide the correct solution.

a equals p percent times b. Nine equals twenty percent times x. Nine equals zero point zero two times x. Nine divided by zero point zero two equals zero point zero two times x, this quantity divided by zero point zero two. Both zero point zero twos on the right side of the equation cancel out. Nine divided by zero point zero two. Four hundred fifty equals x.

Answer: twenty percent of four hundred fifty is 9.


Question 2 (Essay Worth 4 points)

Use the circle graph to answer this question: If there were six hundred people at the town carnival, how many were in the age group twelve through eighteen? Show and explain your solution process.

Circle graph divided into three wedge-shaped parts. It is titled, Attendance by Age at Town Carnival. One part represents people from ages zero to eleven. This is twenty-five percent. Another part represents people who are between the ages of nineteen and one hundred. This is forty percent. Another part represents people from ages twelve through eighteen. This is thirty-five percent.


Question 3 (Multiple Choice Worth 2 points)

"3 is what percent of sixty-five?"

Which of the following is the most reasonable answer to this question?

zero point five percent

five percent

fifty percent

five hundred percent

Question 4 (Multiple Choice Worth 2 points)

forty-five is what percent of fifteen?

3

thirty

thirty-three

three hundred

Question 5 (Multiple Choice Worth 2 points)

forty-eight is forty percent of what number?

twelve

nineteen point two

one hundred twenty

one hundred ninety-two

Question 6 (Multiple Choice Worth 2 points)

At a manufacturing plant, parts are regularly tested. Past records indicate that two percent of all parts tested are found to be defective. In a test batch of four hundred parts, how many are expected to be defective?

2

4

5

8

Question 7 (Multiple Choice Worth 2 points)

"What is ninety percent of two hundred fifty?"

Which equation could be used to answer this question?

x equals zero point nine times two hundred fifty

ninety equals two hundred fifty x

x equals zero point zero nine times two hundred fifty

two hundred fifty equals x times ninety

Question 8 (Multiple Choice Worth 2 points)

twenty-three equals zero point five times b

This equation could be used to answer which question?

twenty-three is five percent of what number?

What is twenty-three percent of zero point five?

fifty percent of what number is twenty-three?

What is fifty percent of twenty-three?

Answer 3

This is the history section

Answer 4

wrong section, that belongs in the mathematics section, learn to read.