Percent of Change
Algebra Tiles
Systems of Equations
I
Systems of Equations
II
100
Bobby went to Walmart to buy a PS4. The PS4 was on sale for $300, down from $400. What was the percent of decrease?
What is 25%
100
You have one x2 - block, four x-blocks, and 3 one-blocks. Draw a rectangular algebra-block diagram that uses all these blocks and label the side lengths.
What is (x + 3) and (x + 1)
100
Solve for x and y: 2x - 3y = 5 4x + 3y = 19
What is x=4 and y=1
100
Solve for x and y: y = x + 1 2x + 5y = 19
What is x = 2 and y = 3
200
The price of candy at All Things Candy went on sale and dropped from $2.50 per pound to $2.00 per pound. What was the percent decrease?
What is 20%
200
You have one x2-block, 4 x-blocks, and 4 one-blocks. Draw a rectangular algebra-block diagram that uses all these blocks and label the side lengths.
What is (x + 2) and (x + 2)
200
Solve for x and y: 3x + 2y = 5 5x - 2y = 3
What is x = 1 and y=1
200
Solve for x and y: x + y = 4 4x + 3y = 13
What is x = 1 and y = 3.
300
The price of stock increased from $3.25 a share to $4.35 a share. What was the percent of increase?
What is 33.8%
300
You have one x2-block, five x-blocks, and a supply of 1-blocks. Draw ONE rectangular algebra-block diagram that uses these blocks and label the side lengths.
What is (x)(x + 5), or (x + 1)(x + 4) or (x + 2)(x + 3)
300
The Celtics scored a total of 80 points in a basketball game against the Bulls. The Celtics made a total of 37 two-point and three-point baskets. How many two-point shots did the Celtics make? How many three-point shots did the Celtics make?
What is 31 two-pointers, and 6 three-pointers.
300
The Morgan family and the Hampton family are seeing a movie together in the theater. At the concession stand, Mr. Morgan paid $19 for 1 large popcorn and 3 large drinks that his family will share. Mrs. Hampton bought 4 large popcorns and 2 large drinks and paid $26. How much does each item cost?
What is Drinks are $5 and Popcorn is $4.
400
The price of a car that originally sold for $17,000 has been reduced to $14,450. Find the percent of decrease in the price of the car.
What is 15%
400
You have one x2-block, a supply of x-blocks, and 8 one-blocks (all you must use). Draw a rectangular algebra-block diagram that uses all these blocks and label the side lengths.
What is (x + 8)(x + 1) or (x + 4)(x + 2)
400
Mrs. Hanson is shopping for school supplies with her children. Cara selected 2 one-inch binders and 3 two-inch binders, which cost a total of $30. Dedra selected 3 one-inch binders and 5 two-inch binders, which cost a total of $49. How much does each size of binder cost?
What is $3 for One-Inch Binder, $8 for Two-Inch Binder
400
The county fair charges admission plus a fee for each ride you go on. Admission plus 5 rides costs $17. Admission plus 8 rides cost $26. What is the charge for admission and for each ride?
What is $2 for Admission and $3 per Ride.
500
A family is adding additional rooms to their house. The house originally had 1500 sq. ft. of floor space. After the additions are completed, the house will have 1800 sq. ft. of floor space. Find the percent of increase in floor space.
What is 20%.
500
You have one x2-blocks, four x-blocks, and a supply of 1-blocks. Draw TWO rectangular algebra-block diagrams that uses all these blocks and label the side lengths.
What is (x + 3)(x + 1), (x + 2)(x + 2), or (x)(x + 4).
500
In honor of Pi Day, the school threw a Pie Party. The principal bought 5 pies and 4 bottles of juice for $32. The vice-principal bought 3 pies and 5 bottles of juice for $27. How much did each pie cost?
What is each pie cost $4.
500
Dr. Marsh decides to put tennis balls on the legs of all the chairs and stools in the lab to protect the floor. There are 40 seats in all and she needed 144 tennis balls to cover all the legs. If the stools have 3 legs and the chairs have 4 legs, how many stools are there in the science lab?
What is 16 stools.
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