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Math 7 - Module 1D - Lesson 18 Problems Worked Out

Check your work and Answers by following along.
If you are still having issues after the video,
form questions to ask during class or Academic Support

Math 7 - Module 1D - Lesson 18

Finding CORRESPONDING Lengths
Given
a length
AND
(by finding) the Scale Factor (SF)
Original Measurement X Scale Factor = NEW Measurement

Pre-Algebra - 4.6 Writing Equations

Be able to write an equation (2-Step) given information from a word problem and solve it.
Solving a 2-Step Equation:
(Pre-Step 1) Simplify, if possible, one-side of the equation - by combining like terms, distributing, etc
(Step 1) Eliminate the Constant from the side with the Variable - Additive Inverse
(Step 2) Eliminate the Coefficient - Multiplicative Inverse

Math 7 - Module 1D - Lesson 17 Problem Set Worked out

An explanation and working out of the steps for the problem set.
Check and compare your work.
Still unsure or lost, ask questions during class or Academic Support.

Pre-Algebra - 4.5 Day 2: More 2-Step Equations Practice

TWO Steps
(check first - if you can simplify one side of the equation by combining LIKE Terms - if possible)
1) How to you eliminate the Constant? (set it to ZERO by using the Additive Inverse)
2) How to you eliminate the Coefficient? (set to ONE by using the Multiplicative Inverse)

Math 7 - Module 1D - Lesson 17

How do you find the SCALE FACTOR?
How do you use the Scale Factor, SF to show a drawing is a scale drawing/proportional drawing or not?
Given the Scale Factor, SF and the Original Measurements/Length/Distance,
draw the NEW image as a Reduction or Enlargement based on the Scale Factor.

Pre-Algebra - 4.5: Solving 2-Step Equations

Solve the Algebraic Equation (Isolate the variable)
1) Zero out the Constant (add or subtract to both sides of the "equal sign")
2) Convert the Coefficient to One (multiply by the multiplicative inverse)

Math 7 - Module 1D - Lesson 16

What is the Scale?
Is it
An Enlargement?
or
A Reduction?

Pre-Algebra: Simplifying an Expression

Follow the Rules of GEMDAS aka the Order of Operations to simplify an expression
Distributing to eliminate grouping symbols
Sorting terms by Like Terms in order to Combine Like Terms

Pre-Algebra: Identifying Terms and Parts of an Expression

Separate the Expression into Terms to work with
Be able to Identify and Label the:
Like Terms
Constants
and
Coefficients
This exercise helps for you to see that you can only combine LIKE TERMS

Math 7 - Simplifying a Complex Ratio

Simplifying a Complex Ratio aka a Complex Fraction.
A Complex Ratio is a Ratio to a Ratio
To Simplify a Complex Ratio, convert the complex ratio into a division expression
The division expression will be dividing two fractions
Dividing two fractions is to
convert the division into multiplication
and multiply by the Reciprocal aka the Multiplicative Inverse

Math 7 - Finding the Unit Rate

Finding the Unit Rate is making an Equivalent Ratio where the Denominator is 1.
"per" mean "over 1" or "to 1"

Math 7 - Writing a Ratio

Given a story with information/ data, write a ratio from the desired relationship of two numbers.
Simplifying the ratio to a Simplified Fraction.

Math 7 - Equivalent Ratios, Percent to Fraction, Percent of a Number

Models on how to shoe work for
Make/ Find/ Write equivalent ratios/ fractions
Change a Percent to a Fraction (in Simplest Form)
Calculate the Percent of a Number

Math 7 - Discount Price, Mark Up Price, and other Practice Problems for the FINAL modeled

Modeled Problems for
Discount Price
Mark Up Price
containing
Changing a Percent to a Fraction
Taking a Percent "of" a Number
having to
Simplify a Fraction
also known as
Making Equivalent Ratios/Fractions
Problems like these will appear on the FINAL