Review Equations

Review Equations

Absolute Value Equations

Proportions

Word Problems

Solving Proportions

• Cross Multiply

• Distribute if needed

• Inverse Operation

• Solve for X

Multiple Choice

Solve for F.

• f=17

• f=13

Solving an Absolute Value Equation

• Isolate the absolute value

• Create 2 equations (one positive & one negative)

• Solve both equations

• Then.......

Poll

What is the last step when solving an absolute value?

• Write your answer in a solution set

• Write your answer greatest to least

• Write the positive and the negative

Multiple Select

Check the correct answers!

• n=-3

• n=13

• n=3

• n=-13

Multiple Select

Solve for X.

• X=3

• X=-4

• No Solution

• X= 0

Multiple Choice

When eliminating a fraction, what should we do?

• Divide by the reciprocal

• Multiply by the fraction

• Multiply by the reciprocal

Solving Literal Equations

• No steps BUT

• Eliminate the fractions first

• Then solve for the desired variable

• Use backwards PEMDAS if needed

Multiple Choice

Solve for d.

• d= 2ST

•  $d=\frac{2S}{T}$  

•  $d=\frac{ST}{2}$  
  

Multiple Choice

Solve for C.

• $\frac{E}{m}=c^2$

• $\sqrt{\frac{E}{m}}=c$

• $\frac{E}{m^2}=c$

Multiple Choice

Solve for h.

• $\frac{V}{3\pi r^2}=h$

• $\frac{3V}{\pi r}=h$

• $\frac{3V}{\pi r^2}=h$

Multiple Choice

Translate: The Broncos has 5 less than 3 times the amount of points the Cowboys have.

Use Broncos as y and Cowboys as x !

• x=3y-5

• y=5-3x

• y=3x-5

Multiple Choice

The larger number is 3 more than twice the smaller number.

Use y for the larger number and x for the smaller number

• y= 3 + 2x

• y=3x +2

• x= 3 + 2x