Algebra 1 : Algebra 1

Study concepts, example questions & explanations for Algebra 1

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Example Questions

Example Question #3191 : Algebra 1

14% of 50 is _____?

Possible Answers:

Correct answer:

Explanation:

Divide numerator and denominator by 2 and you get , so 7 is 14% of 50.

Example Question #3192 : Algebra 1

Julie made 500 handbags last year.  She gave 15 away and sold 185.  What percentage of the 500 handbags crafted does she still have in her inventory?

Possible Answers:

Correct answer:

Explanation:

Example Question #3193 : Algebra 1

What is 35% of 200?

Possible Answers:

Correct answer:

Explanation:

To find 35% of 200, we just need to multiply

 

This gives us our answer, 70. Alternatively, we could realize instinctively that 35% of 100 is 35, and then double it to get the same answer.

Example Question #3194 : Algebra 1

What is 64% of 86?

Possible Answers:

Correct answer:

Explanation:

First, write 64% as a decimal. Just move the decimal point of 64% two digits to the left and then eliminate the % so that we get 0.64.  Thus, 64%=0.64. Then multiply that 0.64 by 86

So 55 is 64% of 86.

Example Question #3195 : Algebra 1

Wendy and Bob are cleaning their house at the same speed. Working together, they can clean the house in 8 hours. What percentage of the house can Wendy clean in 4 hours if she is cleaning by herself?

Possible Answers:

Correct answer:

Explanation:

It takes Bob and Wendy 8 hours to clean the entire house, for a total of 16 man-hours. This means that one hour of cleaning by one person will clean of the house, or 6.25%. Thus, Wendy can clean 25% of the house by herself in 4 hours.

Example Question #3196 : Algebra 1

What is  of , rounded to the nearest tenth? 

Possible Answers:

Correct answer:

Explanation:

Convert 34% to a decimal: 0.34

Multiply 0.34 by 492: 167.28

Round to the nearest tenth: 167.3

Example Question #8 : How To Find The Part From The Whole With Percentage

Choose the correct answer. 

What is  of 

Possible Answers:

Correct answer:

Explanation:

To find a part of the whole number, you multiply the percentage in decimal form against the whole number. The first step is to convert the percentage into a decimal,  to . Then multiply the decimal against the whole number,  

Example Question #9 : How To Find The Part From The Whole With Percentage

Select the correct answer. 

What is  of 

Possible Answers:

Correct answer:

Explanation:

To find the part of the whole, first convert the percentage to a decimal,  to , then multiply the decimal against the whole number given, , resulting in . Alternatively, we know that  is equal to  , so we could divide the whole number, ,  into four equal parts, which would be . Since we need   (three quarters), we multiply  , resulting in 

Example Question #10 : How To Find The Part From The Whole With Percentage

If  of the student body is female, what is the percentage of males? 

Possible Answers:

Correct answer:

Explanation:

If  of the student body is female, this is equivalent to .  Since  is the whole, . Thus  is not female.

Alternatively, if  is not male, then the rest must be male, so  . Then we can convert that decimal to a percentage, 

Example Question #11 : How To Find The Part From The Whole With Percentage

What is  of ?

Possible Answers:

Correct answer:

Explanation:

To find 30 percent of a number, we have to first convert the percentage into a decimal. We can do this by dividing the percentage by one hundred.

Doing so we get,

Now we will multiply 120 number by 0.30.

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