Algebra 1 : Algebra 1

Study concepts, example questions & explanations for Algebra 1

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Example Questions

Example Question #1121 : Algebra 1

Convert  to a percent.

Possible Answers:

Correct answer:

Explanation:

To convert a decimal number to a percentage, simply multiply by 100 or move the decimal place to the right twice.

The answer is:  

Example Question #34 : Percents

Write the percentage given the number .

Possible Answers:

Correct answer:

Explanation:

The percent is represented by some number out of 100 parts.

Set up an equation where some number out of 100 parts is equal to the given number.

Multiply 100 on both sides and simplify.

The correct answer is:  

Example Question #37 : Percents

Convert  into a percent.

Possible Answers:

Correct answer:

Explanation:

The percent of a number is some number out of 100 parts.  Setup an equation such that some number over 100 parts is equal to the given number.

Multiply by 100 on both sides.

This is the same as moving the decimal place two spaces to the right.

The correct answer is:  

Example Question #35 : Percents

Write the percentage for the number .

Possible Answers:

Correct answer:

Explanation:

A percentage is some number out of 100 parts.

To write a number into a percentage, simply move the decimal place two spaces to the right and add a percentage sign, or multiply by 100 and add a percent sign.

The answer is:  

Example Question #34 : Percents

Convert  to a percent.

Possible Answers:

Correct answer:

Explanation:

A percentage is some number over 100 parts.  Set up an equation where some number over 100 parts is equal to the given number in the problem.

Multiply by 100 on both sides.   This is also the same as moving the decimal place two spaces to the right.

The correct answer is:  

Example Question #37 : Percents

What is  as a percent?

Possible Answers:

Correct answer:

Explanation:

A percentage is some number out of .

Some percentage is equal to .

Write the equation.

Notice that if we multiplied both sides by , we are moving the decimal place two spaces to the right. Add a percentage sign at the end.

The answer is: 

Example Question #41 : Percents

What is thirty percent of twenty percent of sixty percent as a fraction?

Possible Answers:

Correct answer:

Explanation:

Rewrite each percentage as a fraction.

Thirty percent: 

Twenty percent: 

Sixty percent:

Multiply the reduced fractions together.

The answer is: 

Example Question #1122 : Algebra 1

Rewrite  as a percent.

Possible Answers:

Correct answer:

Explanation:

A percentage is a number out of 100 parts.

Set up an equation such that a number out of 100 parts is equal to .

Multiply both sides by 100.  This is the same as moving the decimal place of  two spaces to the right and add a percentage sign to the end.

The answer is:  

Example Question #1123 : Algebra 1

Jillian makes $550 per week after taxes.  If she puts 10% of her weekly earnings into her saving account, how much will she have left?

Possible Answers:

$500

$605

$495

$545

$55

Correct answer:

$495

Explanation:

Convert 10% to a decimal by dividing it by 100:

Find 10% of 550 by multiplying it by the decimal:

Subtract the product from the original amount:

Example Question #1 : Proportions

The  probability of an event is 3/11. Find the chance the event will not occur.

Possible Answers:

3/11

8/3

11/3

8/11

3/8

Correct answer:

8/11

Explanation:

If the chance an event will happen is 3/11, that means there are 8 instances where the even would not occur out of every 11, giving us 8/11.

3 chances out of 11 = event

11 – 3 = 8

8 chances out of 11 = no event

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