One Step & Two Step Equations

Surpise!

100

You earn $15 per hour at your job. Each way, you pay $2.50 in bus fare. How many hours do you have to work to take home $100.

15h - 5 = 100 h= 7 hours.

200

A video rental store rents a movie at $2.95 for the first night, plus $1.50 for each additional night. When you return the movie, you pay $8.95. How many nights did you keep the movie?

Double Jeopardy

1.50n + 2.95 = 8.95 n= 4 additional night. 5 NIGHTS TOTAL

300

Your class budgets money from the class treasury for a school dance. Decorations will cost $50. The DJ charges $30 per hour. If your class has a total of $170 to spend on the dance, how many hours can you pay a DJ?

30h + 50 = 170 h= 4 hours

400

The sum of the measures of the angles of a triangle is 180 degrees. One angle measures 45 degrees. The measures of the other two angles are equal. What are the measures of the other two angles?

2a + 45 = 180 a=67.5 degrees

500

You buy 1.25 pounds of apples and 2.45 pounds of bananas. After you use a $0.75 off coupon, the total cost comes to $2.58 . Both the apples and bananas cost the same price per pound. Find the price per pound.

Double Jeopardy

(1.25+ 2.45)p - 0.75 = 2.58 p= $0.90 per pound

Two Step Equations

100

−9x + 1 = −80

Double Jeopardy

x= 9

200

−15 = −4m + 5

m= 5

300

10 − 6v = −104

v= 19

400

−9x − 13 = −103

x= 10

500

An auto rental agency offers a rate of $38.00 per day plus $0.30/ per mile. After a one- day rental, the bill was $74. How many miles were driven?

38 + 0.30m = 74 m= 120

Two Step Equations

100

−2 = 2 + v/4

v= 16

200

−6 = n/2 − 10

n= 8

300

b/ (-8) +10 =4

b = 48

400

−6 + x/4 = −5

x= 4

500

You want to go to Africa for a photo safari. You need a total of $2,800. You can get $1,000 from your savings account and you can save $30 per week. How many weeks will it take you to save up for the trip?

1,000 + 30w = 2,800 w = 60

Two Step Equations

100

A letter that is used to represent a number that isn't known

What is a variable

200

opposite signs that undo each other

What are inverse operations?

300

What is the Inverse operation of Addition

What is Subtraction?

400

Addition, subtraction, multiplication, division,

What are the four operations?  

500

What is the operation that undoes division and brings it to 1? 

What is multiplication?