Go Math! Practice Fluency Workbook Grade 6 Chapter 8 Percents Exercise 8.3 Answer Key

Go Math! Practice Fluency Workbook Grade 6 California 1st Edition Chapter 8 Percents

Page 53 Problem 1 Answer

Here the value is 22. Total number of students is 55.

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 1

22 students is 40% of 55.

Page 53 Problem 2 Answer

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 2

red marbles is 40% of 60 marbles

Page 53 Problem 3 Answer

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 3

15% of $9 is $1.35.

Go Math! Practice Fluency Workbook Grade 6 Chapter 8 Percents Exercise 8.3 Answer Key

Page 53 Problem 4 Answer

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 4

12 is 6% of 200.

Page 53 Problem 5 Answer

Total number of messages Bethany sent is 60.

Percentage of messages she sent to her best friend is 15%.

The number of text messages Bethany sent to her best friend is 9.

Given, Bethany sent 60 text messages out of which 15% of messages were sent to her best friend.

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 5

Then the number of messages Bethany sent to her best friend is 9.

Page 53 Problem 6 Answer

Given: 27% of the people in a survey chose salads over a meat dish.

81 people chose salads.To find: the number of people in the survey

summary: Write the equation to find the percentage. Substitute the given values. Solve for the unknown.

Given that 27% of people in the survey chose salads over a meat dish.

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 6

The number of people who chose salad over meat dish is 81, the value of the part in the equation.

Substitute these values in the equation for percentage.

If the percentage and the number of people in a survey who chose salad over a meat fish are 27% and 81 respectively, then the total number of people in the survey is 300.

Page 53 Problem 7 Answer

Given: The sales tax on a $350 computer is $22.75.

To find: The sales tax rate. Summary: Given the part and the total. Substitute the values in the equation for percentage.

Simplify and find the percentage. Given the cost of the computer is $350.

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 7

The sale tax on it is $22.75. Substitute these values in the equation to If the sales tax on a computer of cost $350 is $22.75, then the sales tax rate of the product is 6.5%.

Page 53 Problem 8 Answer

Given: The circle graph

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 8 1

To find: The number of voters of age 18−29 if the total number of voters is 6000.

Summary: Identify the percentage of the given age group from the figure. Substitute the value and the total in the equation for the percentage.

Solve for the unknown. The percentage of voters of age 18−29 is 10%.

The total number of people who voted for the election is 6000.

Substitute these values in the equation for percentage and solve.

The figure below shows the age group and the percentage of voters.

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 8 2

If the total number of voters is 6000, the number of voters of age 18−29 is 600.

Page 53 Problem 9 Answer

Given: The cycle graph,

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 9 1

To find: If the total number of voters is 12,000, find the number of voters of age 50−64.

Summary: Identify the percentage of age group voters from the figure and the total. Substitute the values in the equation and solve.

Given the total number of voters is 12,000. The percentage of voters of age 50−64 is 35%.

percentage=value/total×100

value=percentage×total/100

​Substituting the values, we get, ​value=35×12000/100 = 4200; which is the number of voters of the age 50−64.

The circle graph is given below,

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 9 2

If the total number of voters is 12,000 the number of voters of age 50−64 is 4200.

Page 53 Problem 10 Answer

Given: The circle graph is

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 10 1

To find: The number of voters of age over 65 if the total number of voters is 596.

Summary: Find the percentage of voters of the given age group from the figure and the total is also given. Substitute the values in the equation and solve.

The total number of voters is 596. The percentage of voters of age over 60=25%

​Percentage=value/total×100

value=percentage×total/100

​Substitute the values in the equation, ​value=25×596/100=149; which is the number of voters of age over 60.

The circle graph is given below, If the total number of voters is 596, then the number of voters of age over 60 is 149.

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 10 2

Page 53 Problem 11 Answer

From the below given circle graph,

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 11 1

The percentage of voters of age 18−29=10%.

The percentage of voters of age 30−49=30%.

The number of people of age group 18−29 who voted is 45.

The percentage of voters of age 30−49 is three tomes the percentage of voters of age 18−29.

So in order to find the number of people of age 30−49 who voted, we need to multiply the number of people of age 18−29 who voted with three.

That is, 45×3=135. This is how Sahil calculated the answer, and he is correct.

Given the circle graph,

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents 11 2

Knowing that the number of people of age 18−29 who voted is 45, Sahil said the number of people of age 30−49 who voted is 135.

He is correct. He did it by multiplying three to the number just like their percentages are got

Page 54 Exercise 1 Answer

Here the value is 14. If 14 is some percent of 25, then 14 is the part.

In the problem to find what percentage of 25 is 14, the part is 14.

Page 54 Exercise 2 Answer

In the question statement, ” What percent of 25 is 14″, The part or the value is 14 The total is 25.

In the problem statement, “what percent of 25 is 14”, the total is 25.

Page 54 Exercise 3 Answer

Given: Some percent of 25 is 14

To find: Percentage of 14 part of 25

By using the formula, first, we divide 14 by 25 and then multiply it by 100 to get the percentage.

Divide 14 by 25,

=14/25

=0.56

Multiply it by 100,

=0.56⋅100

=56%

In a statement, what percent of 25 is 14. We got the percentage which is, 56%

Page 54 Exercise 4 Answer

Given: __% of 25 is 14

To find: Write and solve the equation.

We put 56 % in the fill-in-the-blank and solve the equation.

We put 56% in the fill-in-the-blank,

=56 %of 25is 14We check,

=56% of 25

=56/100 ⋅25

=0.56⋅25

=14

We solved 56% of 25 is 14.

Page 54 Exercise 5 Answer

Given: 80% of some number is 16

To write what is the part. If 80% of some number is 16, then 16 is the part.

In the problem to find 80 percentage of some number is 16, the part is 16.

Page 54 Exercise 6 Answer

Given: 80% of some number is 16

To find :The total number whose 80% is 16

By using the formula, we divide the 16 by 80% to get the total number.

Go Math! Practice Fluency Workbook Grade 6, California 1st Edition, Chapter 8 Percents e6

In the statement, 80% of what number is 16, what number or total came as 20.

Page 54 Exercise 7 Answer

Given: 80% of some number is 16

We need to write the percent In the statement, 80% of some number is 16, 80 is the percentage.

In the given statement of question , 80 is the percentage.

Page 54 Exercise 8 Answer

Given:80% of ___ is 16

To find: Write and solve the equation.

We put 20 in the fill-in-the-blank and solve it.

Given,80% of _______ is 16.

We put 20 in the fill-in-the-blank, = 80% of 20 is 16 We check,

=80 % of 20

=0.8⋅20

=16

Page 54 Exercise 9 Answer

Given that What percent of 20 is 11

As we have all the required values we need, Now we can put them in a simple mathematical formula as below

What percent of 20 is 11, just enter 11÷20×100 and you will get your answer which is55

Y=11/20×100/100=55/100

Percentage Calculator:11 is what percent of 20=55.

Page 54 Exercise 10 Answer

Given that 18 is 45 of what number?

As we have all the required values we need, Now we can put them in a simple mathematical formula as below:

You can easily calculate 18 is 45 percent of what number by, simply enter 18×100÷45 and you will get your answer which is 40

Page 54 Exercise 11 Answer

Given that 15 is what percent of 5

By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS (left-hand side) of both equations have the same unit percent we have 5 is what percent of 15=33.33

Page 54 Exercise 12 Answer

Given that 75 of what number is 105/75 of 140 is105.

You can prove this easily, divide 105 by 75 to find 1 percent (1.4) then simply multiply by100

Percentage: What is 75

percent of 105=78.75

 

Go Math Answer Key

 

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