Definitions and Vocab
1/2 is the equivalent ________ of 0.5 or 50%
What is a Fraction
Ms. Stephens made a rectangular poster with a length of 8 inches and a height of 16 inches. She wants to change the size so that the length of the new poster is 150% the length of the original, and so the height of the new poster is 75% of the original. What are the new dimensions of the poster?
What is 12 inches by 12 inches
Copy 2 is a scale drawing of the original triangle. What is the scale factor, as a PERCENT, of the original to Copy 2?
Look at the image on practice problem 2 of your study guide.
What is 50%
Ms. Stephens 8th grade classes are 70% 13 year olds and 30% 14 year olds. 20% of the 13 year olds are blond, while 30% of the 14 year olds are blond.
Pick a variable to represent the total number of 8th graders Ms. Stephens teaches
What is (any letter you chose)
12% is the equivalent ______ of 3/25 or .12
What is percent
A scale drawing of a garden has a length of 16 inches. The scale of the actual garden to the drawing is 5ft for every 4 inches. What is the length of the actual garden?
What is 20 ft
There are 52 cards in a deck of playing cards. There are 13 hearts, 13 spades, 13 clubs, and 13 diamonds. Each of these 4 suits has 3 face cards.
What percent of the cards in the deck are spades
What is 25%
Ms. Stephens 8th grade classes are 70% 13 year olds and 30% 14 year olds. 20% of the 13 year olds are blond, while 30% of the 14 year olds are blond.
Write an expression using your variable that represents the total number of blond 8th graders in Ms. Stephens classes
What is (0.7)(0.2)s + (0.3)(0.3)s
0.35 is the equivalent ________ of 7/20 or 35%
What is decimal
Rectangle B is a scale drawing of Rectangle A using a scale factor of 200%. The AREA of Rectangle A is 25. What is the AREA of Rectangle B?
What is 100 ft
There are 52 cards in a deck of playing cards. There are 13 hearts, 13 spades, 13 clubs, and 13 diamonds. Each of these 4 suits has 3 face cards.
What percent of cards are spades AND face cards?
What is about 6%
Ms. Stephens 8th grade classes are 70% 13 year olds and 30% 14 year olds. 20% of the 13 year olds are blond, while 30% of the 14 year olds are blond.
What percent of Ms. Stephens 8th graders are blond?
What is 23%
If a scale factor is GREATER than 100%, then the scale drawing is an
What is an Enlargement
Ms. Stephens made 2 models of herself (because why not.) The scale factor from her actual height to model 1 was 150%. The scale factor from model 1 to model 2 was 25%. What is the scale factor from Ms. Stephens’ actual height to model 2?
What is 37.5%
There are 52 cards in a deck of playing cards. There are 13 hearts, 13 spades, 13 clubs, and 13 diamonds. Each of these 4 suits has 3 face cards.
What percent of cards are face cards?
What is about 23%
A container is filled with 100 grams of bird feed that is 80% seed. How many grams of bird feed containing 5% seed must be added so that the bird feed is 40% seed?
What is 114.3 grams
If a scale factor is LESS than 100%, then the scale drawing is a
What is Reduction
The larger pentagon is a scale drawing of the smaller pentagon. What percent of the area of the small pentagon is the area of the large pentagon?
Look at the drawing for question 5 on your study guide
What is 441%
There are 52 cards in a deck of playing cards. There are 13 hearts, 13 spades, 13 clubs, and 13 diamonds. Each of these 4 suits has 3 face cards.
What percent of the deck is NOT clubs?
What is 75%
Last years math test had 15% more questions than this years math test. Next year there will be 5% less questions than this year. What percent more questions were on last years math test than next years math test?
What is 21%