Algebra 1 : Proportions

Study concepts, example questions & explanations for Algebra 1

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Example Questions

Example Question #71 : Proportions

Solve the proportion:  

Possible Answers:

Correct answer:

Explanation:

To solve the proportion, cross multiply the fractions.

Simplify both sides.

Divide by six on both sides.

Simplify both sides.

The answer is:  

Example Question #71 : Proportions

Solve the proportion:  

Possible Answers:

Correct answer:

Explanation:

Cross multiply the fractions.

Simplify both sides.

The answer is:  

Example Question #1202 : Linear Equations

Solve the proportion:  

Possible Answers:

Correct answer:

Explanation:

Cross multiply the fractions.

Use the distributive property to simplify the equation.

In order to group the terms, subtract  on both sides, and add 18 on both sides.

Simplify the equation.

Divide by 14 on both sides and simplify.

The answer is:  

Example Question #1203 : Linear Equations

Solve the proportion:  

Possible Answers:

Correct answer:

Explanation:

In order to solve for the unknown variable, cross multiply both fractions.

Simplify both sides.

Divide by 64 on both sides.

The answer is:  

Example Question #1202 : Algebra 1

Solve the proportion:  

Possible Answers:

Correct answer:

Explanation:

Cross multiply the two fractions.

Distribute the left side.

Subtract  from both sides.

Simplify both sides.

The answer is:  

Example Question #76 : Proportions

Solve the proportion:  

Possible Answers:

Correct answer:

Explanation:

Cross multiply the two fractions.

Simplify both sides.

Divide by 21 on both sides to isolate the x-variable.

Reduce the right side of the equation.  The left side of the equation is irreducible.

The answer is:  

Example Question #1203 : Algebra 1

Solve the proportion:   

Possible Answers:

Correct answer:

Explanation:

Cross multiply the two fractions.

Simplify both sides of the equation.

Subtract 16 from both sides and simplify the equation.

Divide by eight on both sides.

The answer is:  

Example Question #78 : Proportions

Solve the proportion:  

Possible Answers:

Correct answer:

Explanation:

To solve the proportion, cross multiply both sides of the equation.

Distribute the terms to simplify.

Subtract  from both sides.

Subtract three from both sides.

The answer is:  

Example Question #79 : Proportions

Solve the proportion:  

Possible Answers:

Correct answer:

Explanation:

Before we cross multiply, we have to make sure to note that there is an  existent in the denominator.  Recall that a denominator cannot be zero.

Set the denominator equal to zero and solve for .

The final answer cannot be  after solving the proportion.

Cross multiply the fractions given.

Simplify by distribution.

Subtract  on both sides and simplify.

Subtract  on both sides.

Divide by on both sides.

The answer is:  

Example Question #73 : Proportions

Solve the proportion:  

Possible Answers:

Correct answer:

Explanation:

Cross multiply both fractions.

Simplify both sides.

In order to isolate x, we will need to divide both sides by 42.

Reduce both fractions on the left and right side.

The answer is:  

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