High School Math : High School Math

Study concepts, example questions & explanations for High School Math

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Example Questions

Example Question #3 : How To Solve Two Step Equations With Fractions In Pre Algebra

Solve for .

Possible Answers:

Correct answer:

Explanation:

To solve , first we need to get rid of the fraction. Dividing by a fraction is the same as multiplying by a reciprocal, so multiply both sides by .

Subtract  from both sides.

Example Question #2 : How To Solve Two Step Equations With Fractions In Pre Algebra

Solve for .

Possible Answers:

Correct answer:

Explanation:

To solve , we need to get rid of the fraction. To do that, we multiply both sides by the reciprocal of that fraction.

From here, you can either plug that fraction into your calculator or solve in pieces.

Example Question #8 : How To Solve Two Step Equations With Fractions In Pre Algebra

Solve for .

Possible Answers:

Correct answer:

Explanation:

To solve for , we need to isolate our variable. That means that we want ONLY the  on the left side of the equation.

First, combine our like terms on the right side.

Now divide both sides by . Remember, dividing by a fraction is the same as multiplying by the reciprocal, so we're going to multiply both sides by .

Since , we can ignore it.

Example Question #9 : How To Solve Two Step Equations With Fractions In Pre Algebra

A glass jar is filled to the top with 100 blue marbles, 75 red marbles, and 25 yellow marbles. Each time a marbles is picked from the jar, it must be returned to the jar before another marble is picked again. What is the probability of picking a red marble?

Possible Answers:

Correct answer:

Explanation:

First, find the total number of marbles in the glass jar:  marbles in total.

It is given that there are 75 red marbles, thus: .

Example Question #501 : High School Math

Possible Answers:

Correct answer:

Explanation:

First add 9 to both sides:

Then multiply both sides by 3:

 

Example Question #502 : High School Math

Solve for .

Possible Answers:

Correct answer:

Explanation:

To solve, we must perform the same operations to both sides of the equation.

Add 7 to both sides.

Divide both sides by 3.

Example Question #503 : High School Math

Solve the equation for .

 

Possible Answers:

Correct answer:

Explanation:

Subtract from both sides and simplify.

Multiply both sides by to remove it from the denominator.

Divide both sides by .

Simplify the fraction.

Example Question #1 : How To Solve Two Step Equations With Decimals In Pre Algebra

 

Possible Answers:

Correct answer:

Explanation:

This is  a two-step equation.  First you must add the decimals up to have a singular variable element

Then divide both sides by 4:

Example Question #2 : How To Solve Two Step Equations With Decimals In Pre Algebra

Solve the equation for . (Round to two decimal places).

Possible Answers:

Correct answer:

Explanation:

Subtract from both sides of the equation, and simplify.

Divide both sides by . Be careful of the negative sign.

Example Question #1 : How To Solve Two Step Equations With Decimals In Pre Algebra

Solve for

Possible Answers:

Correct answer:

Explanation:

The goal is to get  alone on one side. Therefore you subtract  from both sides to get . Then divide both sides by  to get  alone.

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