Algebra 1 : Linear Equations
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Example Questions
Example Question #1081 : Linear Equations
Write the equation: Fourteen more than thrice a number is fifteen.
Split up the sentence into parts.
Thrice a number:
Fourteen more than thrice a number:
Is fifteen:
Combine the terms to form an equation.
The answer is:
Example Question #166 : How To Write Expressions And Equations
Write the equation: Four times the quantity of four times a number is equal to six.
Break up the statement into parts.
Four times a number:
Four times the quantity of four times a number:
Is equal to six:
The answer is:
Example Question #161 : How To Write Expressions And Equations
Write the equation: Twelve more than six times the square of a number is negative four.
Break up the question in parts.
The square of a number:
Six times the square of a number:
Twelve more than six times the square of a number:
Is negative four:
Combine the terms to form an equation.
The answer is:
Example Question #1083 : Linear Equations
Write the equation: Five less than six times a number is twelve.
Break up the sentence into parts.
Six times a number:
Five less than six times a number:
Is twelve:
Combine the parts to form an equation.
The answer is:
Example Question #1081 : Algebra 1
Write the expression: Six less than twice a number.
To write the expression, split the sentence into parts. An expression does not have an inequality or equal sign.
Twice a number:
Six less than twice a number:
The answer is:
Example Question #2 : Complex Numbers
Divide:
Answer must be in standard form.
Multiply both the numerator and the denominator by the conjugate of the denominator which is 
This is equal to
Since 
When you then cancel the negatives in both numerator and denominator (remember that 
Example Question #1 : Percents
45 is what percent of 75?
Let 
Divide both sides by 75.
Multiply by 100 to get the percentage value of the decimal.
Example Question #1 : Percents
In a bag of marbles, Barry has 20 green ones and 40 red ones. If he adds 7 green and 9 red, what percentage (to the nearest hundreth) of the marbles will be green?
0.36%
33.33%
35.52%
0.33%
35.53%
35.53%
First, you need to add in the marbles. This will give you 27 green and 49 red. The total number of marbles in the bag are 76. To find the percentage of green marbles, all you need to do is divide 27 by 76, which gives you 0.35526315789474 or 35.526315789474%. Rounding to the nearest percent, you get 35.53%.
Example Question #2 : Percents
Let 
Set up a proportion statement.
Solve for 
Example Question #1 : Percents
Let 
Set up a proportion statement.
Solve for 
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