TWO STEP EQUATIONS

REAL WORLD PROBLEMS

PreAlgebra

Farris 2015

I can solve verbal problems by writing and solving two step equations.

REMEMBER THE RULES

What you do to one side of the equation-

Do to the other side of the equation!

Addition and Subtraction = opposite operations

Multiplication and Division = opposite operations

Combine like terms!

WORDS TO LEARNAddition = sum, more than

Subtraction = difference, less than

Multiplication = product

Division = quotient

Equals = “is”

SOLVEShelia wants to buy a mountain bike for $180. She has already saved $60. For the next six months, she wants to save an equal amount each month in order to save the total amount.

Equation:

How much will she need to save each month?

6d + 60 = 180 $20 per month

SOLVEIn his DVD collection, Domingo has 8 more than twice as many animated movies as action movies. If he has 24 animated movies, how many action movies are in his collection?

Equation: 24 = 2n + 8 8 movies

SOLVEToa is building a door. The height of the door is 1 foot more than twice its width. If the door is 7 feet high, what is its width?

Equation:

2w + 1 = 7 3 ft

GET UP AND DANCE

https://www.youtube.com/watch?v=21FFHpA5riQ

SOLVEYou return a book that was 6 days overdue. Including previous unpaid balance of $0.90, your new balance is $2.40. How much is the daily fine for an overdue book?

Equation:

6d + 0.90 = 2.40 $0.25

SOLVETonya bought some fruit for $5 and 3 boxes of cereal and spent a total of $17. How much did she spend on 1 box of cereal?

Equation:

3n + 5 = 17 $4 per box

SOLVEMr. Carter is renting a car from an agency that charges $20 per day plus $0.15 per mile. He has a budget of $80 per day. What is the maximum numbers of miles he can drive each day?

Equation: 0.15m + 20 = 80 400 miles