Writing Two-Step Equations
When J.J. house sits, he charges $99 for the entire stay (no matter how many days).
When Deshaun house sits, he charges $10 a day, plus an additional one-time fee of $4.
What is 9.5 days?
-(1/2)x +2 = (1/4)x + 3
What is -1 1/3?
5(2 + 4x)
What is 10+20x?
8x - 4x - 6
What is 4x - 6?
Mr. Webb has two dogs, Ava and Archie.
Archie can eat 3 lbs of food a day.
Ava can eat 2.5 lbs of food a day.
How many pounds of food do Mr. Webb's dogs eat in one week?
What is 38.5 pounds?
2/5x + 2/5 = -38 + 1/10x
What is -128?
-(5 + 7x)
What is -5-7x?
3x +7 - 5x
What is -2x + 7
You are hiring someone to fix your computer. Don't Click On Everything, Inc. charges $312 up front, plus a $12 per hour labor fee. Your Computer Is Not A Frisbee, Inc. charges $36 per hour, and no upfront fees.
The numbers of hours it takes for both companies to cost the same amount.
What is 13 hours?
(1/3)x - 1/4 = -(2/3)x + 3
What is 3 1/4 (or 3.25)?
-4( 3 + 2x)
What is -12-8x?
7 - 4 + 3x
What is 3 + 3x
Road Trip!
You want to rent a car to go to the Grand Canyon. Costco charges $45, plus $0.20 per mile.
Enterprise charges $30, plus $0.25 per mile.
How many miles do you have to drive for the cost to be the same?
What is 300 miles?
11 = (1/20)x + 1/40
What is 219.5?
10 + 3(x + 2)
What is 3x + 16?
7x - 12 + 3x
What is 4x - 12?
Brad Pitt's pool has 300 gallons of water, and is draining 10 gallons per minute. Angelina Jolies' pool is empty, but filling at a rate of 5 gallons per minute.
The minutes it takes for both pools to be even.
What is 20 minutes?
(1/14)x - 6/7 = (5/28)x
What is -8?
23 - 7(x + 3) + 5x
What is -2x+2?
12x - 7 + 2x - 8
What is 14x - 15?