Algebra II : Basic Single-Variable Algebra

Study concepts, example questions & explanations for Algebra II

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Example Questions

Example Question #1 : Expressions

The sum of three consecutive even integers equals 72. What is the product of these integers?

Possible Answers:

10560

13800

12144

13728

17472

Correct answer:

13728

Explanation:

Let us call x the smallest integer. Because the next two numbers are consecutive even integers, we can call represent them as x + 2 and x + 4. We are told the sum of x, x+2, and x+4 is equal to 72. 

x + (x + 2) + (x + 4) = 72

3x + 6 = 72

3x = 66

x = 22.

This means that the integers are 22, 24, and 26. The question asks us for the product of these numbers, which is 22(24)(26) = 13728. 

The answer is 13728.

Example Question #2 : Setting Up Expressions

Express as a mathematical expression. 

 more than 

Possible Answers:

Correct answer:

Explanation:

Take every word and translate into math. 

 more than means that you need to add  to something.

That something is  so just combine them to have an expression of 

Example Question #2 : Expressions

Express as a mathematical expression. 

 less than 

Possible Answers:

Correct answer:

Explanation:

Take every word and translate into math. 

 less than means that you need to subtract  from something.

That something is  so just combine them to have an expression of 

Example Question #7 : Setting Up Expressions

Express as a mathematical expression. 

 times 

Possible Answers:

Correct answer:

Explanation:

Take every word and translate into math. 

 times something means that you need to multiply  to something.

That something is  so just combine them to have an expression of 

Example Question #3 : Setting Up Expressions

Express as a mathematical expression. 

The quotient of  and 

Possible Answers:

Correct answer:

Explanation:

Take every word and translate it into math.

Anytime you take a quotient of  and  is the in the numerator and  is in the denominator.

Therefore expression is 

Example Question #11 : Expressions

Express as a mathematical expression. 

 more than  times 

Possible Answers:

Correct answer:

Explanation:

Take every word and translate it into math. 

 more than means that you need to add  to something. 

 times something means that you need to multiply  to something.

That something is  so just combine them to have an expression of .

Example Question #1892 : Algebra Ii

Express as a mathematical expression. 

 is less than the quotient of  and 

Possible Answers:

Correct answer:

Explanation:

Take every word and translate into math. 

 less than means that you need to subtract  from something.  

Anytime you take a quotient of  and  is the in the numerator and  is in the denominator. Therefore expression is .

Let's combine to create the expression of 

Example Question #1893 : Algebra Ii

Jacob just opened a soda bottling factory. His starting costs were . For each soda he bottles, he will make . Which of the following expressions shows how much money  Jacob will make in terms of , the number of sodas he bottles.

Possible Answers:

Correct answer:

Explanation:

The $10,000 that Jacob invested can be considered as a negative starting value, which will be the y-intercept in the equation.

The total money Jacob makes depends on how many bottles he sells.

If each bottle earns Jacob 50 cents, then the correct equation is .

Example Question #1894 : Algebra Ii

Lisa has $6. She wants to buy some apples and bananas, but wants exactly ten fruits total. If bananas cost 50 cents each and apples cost $1 each, how many apples and bananas should she get?

Let  represent bananas and  represent apples. Set up the system of two equations but do not solve them.

Possible Answers:

Correct answer:

Explanation:

We need to write two equations, one for the total cost of all the fruits, and one for the total number of fruits.

If  represents the number of bananas, and  represents the number of apples, then from the problem statement we know that 

 must be equal to  because Lisa wants  total fruits.

For the other equation we know the price of each fruit and the total amount she wants to spend.

We have now identified the two equations. If you were to solve them, you would see that  and , so she should get  apples and  bananas.

Example Question #11 : Expressions

Set up the following expression:  Twenty less than eight times a number.

Possible Answers:

Correct answer:

Explanation:

To set up the expression, evaluate part by part.  Let  be the unknown number.

Eight times a number:  

Twenty less than eight times the number means that this product is subtracted twenty.  The final answer must be less than eight times the unknown number by twenty.

The correct answer is:  

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