Lesson 12: Practice Problems
Problem 1
The Empire State Building in New York City is about 1,450 feet high (including the antenna at the top) and 400 feet wide. Andre wants to make a scale drawing of the front view of the Empire State Building on an
1 inch to 1 foot
1 inch to 100 feet
1 inch to 1 mile
1 centimeter to 1 meter
1 centimeter to 50 meters
1 centimeter to 1 kilometer
Problem 2
Elena finds that the area of a house on a scale drawing is 25 square inches. The actual area of the house is 2,025 square feet. What is the scale of the drawing?
Problem 3
Which of these scales are equivalent to 3 cm to 4 km? Select all that apply. Recall that 1 inch is 2.54 centimeters.
0.75 cm to 1 km
1 cm to 12 km
6 mm to 2 km
0.3 mm to 40 m
1 inch to 7.62 km
Problem 4 From Unit 1 Lesson 6
These two triangles are scaled copies of one another. The area of the smaller triangle is 9 square units. What is the area of the larger triangle? Explain or show how you know.
Problem 5 From Unit 2 Lesson 8
Water costs $1.25 per bottle. At this rate, what is the cost of:
10 bottles?
20 bottles?
50 bottles?
Problem 6 From Unit 2 Lesson 11
The first row of the table shows the amount of dish detergent and water needed to make a soap solution.
Complete the table for 2, 3, and 4 batches.
number of batches
cups of water
cups of detergent
How much water and detergent is needed for 8 batches? Explain your reasoning.