Vocabulary
Scale
Scale
Word Problems
Random (Spiral Review)
100
an equation that shows two ratios are equal
proportion
100
If a map key says 2 inches = 3 miles, then 6 inches = ___ miles.
9 miles
100
If the scale of a map is 3 cm : 9 miles, what is the scale factor?
3
100
Jordyn is making a scale drawing of a mall. She is using a scale of 1 cm : 3 ft. If the mall is 126 feet long in real life, how long will it be on her scale drawing?
42 cm
100
- 2 + ( -6) =
-8
200
drawing used when an object is too large or too small to represent at its actual size; dimensions of the object have been reduced or enlarged
scale drawing
200
A picture of a cake is 3 inches tall. If the scale factor is 4, how many inches tall is the real cake?
12 inches tall
200
What is the proportion formula that we use for scale problems?
small unit in scale scale distance
-------------------- = --------------------
large unit in scale actual distance
200
The scale for a map to actual distance is 2 cm to 100 mi. The driving distance on the map between Los Angeles and Albany is 16.4 cm. What is the actual distance, in miles, between Los Angeles and Las Vegas?
820 miles
200
4x + 1 = 9
x =
x = 2
300
compares the length on the scale drawing to a length of the actual object and can be written as a ratio
scale
300
If a model of a train is 3 feet long and the model used a scale factor of 1 foot : 30 meters, how long is the actual train?
90 meters
300
Jill made a scale drawing of a building. The current scale drawing has dimensions of 2 cm by 3 cm by 10 cm. She wants to produce a second scale drawing that is larger. If she uses a scale factor of 2, what will the dimensions of the new drawing be?
4 cm by 6 cm by 20 cm
300
The actual dimensions of a playground are 20 ft by 40 ft. The dimensions of a scale model of the playground are 2 inches by 4 inches. What is the scale factor?
10
300
Samari paid $180 for three pairs of shoes. What was the unit rate for the cost of the shoes?
$60 per pair
400
constant of proportionality between the dimensions of an object and the corresponding dimensions on the scale drawing
scale factor
400
If 2 inches on a map equals 20 miles in real life, how many miles would be represented by 6.5 inches?
130 miles
400
The diagram below is a scale model of a flag with regions labeled A through F. Region A of the actual flag has an area of 1,470 square inches. The bottom length of the actual flag is 70 inches.
What is the actual area of region D?
392 square inches
400
A contractor is given a scale drawing of a rectangular patio. The scale from the patio to the drawing is 4 feet to 1 inch. What is the perimeter of the actual patio IF the dimensions of the drawing are 4 inches by 2.5 inches?
52 inches
400
True or false: We do NOT have to find common denominators to multiply fractions.
True
500
the number that we multiply one number by to get another in a proportional relationship
constant of proportionality
500
The actual dimensions of a building are 21 meters by 26.25 meters. The dimensions of a scale model of the building are 6 inches by 7.5 inches. What is the scale factor?
3.5
500
The diagram below is a scale model of a flag with regions labeled A through F. Region A of the actual flag has an area of 1,470 square inches. The bottom length of the actual flag is 70 inches.
What is the scale of the flag?
1 inch : 7 inches
500
A contractor is given a scale drawing of a rectangular patio. The scale from the patio to the drawing is 4 feet to 1 inch. What is the area of the actual patio IF the dimensions of the drawing are 4.25 inches by 2.5 inches?
170 square feet
500
Divide 2.88 by 2.4.
1.2