The perimeter of a rectangle is 80 cm. The length of the rectangle is given as x cm. The width of the rectangle is three times the length. What are the length and width?
What is x + 3x + x + 3x = 80
Length = 10cm Width = 30 cm
200
Simplify -3x + 5z + 11x - 9z
What is 8x - 4z
200
(3y - 5) + (-9y + 1)
What is -6y - 4
200
-60 = 4(x - 5)
What is x = - 10
200
- 10 ≥ 2x + 4
What is x ≤ - 7
Closed to the left at -7
200
Jack's Towing Service charges $38 plus an additional $1.50 for every mile the car is towed. Rick's Tow only charges a flat rate of $ 56 to tow a car. After how many miles will the two towing services charge the same amount?
What is 38 + 1.50x = 56
12 miles
300
Simplify 2(x +1) - 7x + 4
What is -5x + 6
300
(5x³ + 4x² - 7x + 3) + (-2x³ - 6x² + 9x - 1)
What is 3x³ -2x² +2x - 2
300
-5x + 3 + 2x = -90
What is x = - 31
300
- 5(y - 1) ≤ - 35
What is x ≥ 8
closed to the right at 8
300
Janie has x number of dollars saved up for her family vacation. Her sister, Jenna, has 3 more than twice Janie saved for the trip. Together they have $102 saved. How much does each girl have saved?
What is x + 2x + 3 = 102
Janie $33 Jenna $69
400
Simplify -3(x - 2) + x - 4
What is -2x + 2
400
(3x² - 5x + 8) - (7x² - 3x + 1)
What is -4x² -2x + 7
400
11 = 13 - x/2
What is x = 4
400
6 > 7 + 3x - 2x
What is x < -1
Open to the left at -1
400
Write an inequality. Solve and graph it's solution.
Seven more than twice a number is at most 13.
What is 2x + 7 ≤ 13
x ≤ 3
Closed circle shadded left at 3
500
Simplify 4(2y - 3) - 5y + 9
What is 3y - 3
500
(-4x³ + 2x² - x + 3) - (7x³ + 5x² - 2x - 4)
What is -11x³ -3x² + x + 7
500
7x - 5 = 3x + 19
What is x = 6
500
4y - 3 ≤ 5y + 6
What is y ≥ - 9
Open to the right at - 9
500
To rent a school bus for a field trip cost $1 per mile driven and $20 per hour for the driver. If our destination was 80 miles away and the total cost of the trip was $150, how many hours did the trip take?