Scale Factor
Ariel made a scale drawing of a picnic area near the river. The scale of the drawing was 1 inch = 3 yards. If the picnic area is 12 inches wide in the drawing, how wide is the actual picnic area?
What is 36 yards?
Terry bought 2 1/2 dozen chocolate chip cookies. She paid $15 for her purchase. If there were 12 cookies in each dozen, what was the cost per cookie?
What is $0.50?
A movie ticket costs $10.25 per person. What is the constant of proportionality?
What is 10.25?
Find the circumference of a circle with a diameter of 28 inches.
What is 87.92 inches?
A bicycle that normally sells for $150 is on sale for 35% off. What is the sale price of the bicycle?
What is $97.50?
Bridget measured the auditorium and made a scale drawing. The scale she used was 1 inch = 4 feet. The actual length of the stage is 60 feet. How long is the stage in the drawing?
What is 15 inches?
It takes an ant farm 3 days to consume 1/2 of an apple. At that rate, in how many days will the ant farm consume 3 apples?
What is 18 days?
Madison can do 10 jumps in 50 seconds. Find the constant of proportionality.
What is 5?
The diameter is 12 inches. What is the area of this circle? Round your answer to the nearest tenth. Use 3.14 for pi.
What is 113 square inches?
Last week, the price of oranges at the farmer's market was $1.75 per pound. This week, the price has increased by 20%. What is the price of oranges this week?
What is $2.10 per pound?
The map of a park shows that a pond is 4 inches away from a playground. The scale of the map is 1 inch represents 5.75 meters. How far apart are the actual pond and playground?
What is 23 meters?
A customer bought 7.5 gallons of gas for $30. What is the cost for 16 gallons of gas?
What is $64?
Eleanor pays a total of $16.50 for every 6 shirts she has dry-cleaned. What does it cost to dry-clean 9 shirts?
What is $24.75?
A play train travels around a Christmas tree in a circle. The train track measures 6 feet in diameter. What is the distance (in feet) that the train travels?
What is 18.84 feet?
Kristen wants to purchase a game for $24.95. If sales tax is 7.75%, how much will she pay for the game?
What is $26.88?
The length of a car is 24 feet, while the length of the model of the car is 8 inches. Find the scale (different units) AND the scale factor (same units)
What is 1in:3ft (scale) and 1:36 (scale factor)
Alice ran 2 1/4 miles in 3/5 of an hour. At this rate, how far could Alice run in one hour?
What is 3 3/4 or 3.75 miles?
A refund you get varies directly as the number of cans you recycle. Joe gets a $3.75 refund for recycling 75 cans. Write an equation that can be used to find the amount of refund (y) Joe will receive for any number of cans (x) that he recycles.
On ANY circle, the (Circumference ÷ Diameter) = ______?
What is pi or 3.14?
The price of gold is often reported per ounce. At the end of 2005, this price was $500. At the end of 2015, it was $1250. By what percentage did the price per ounce of gold increase?
What is 150%?
The length of a model of a bug measures 8cm in length. If the actual length of the bug is 2 cm, what is the scale factor?
What is 1/4?
What is 1: 1/4?
What is 1:0.25?
The equation to convert temperature in Celsius to Fahrenheit is F = (9/5)C + 32. Does this equation represent a proportional relationship? Explain why you think this.
What is no, because the equation for a proportional relationship should always include the ordered pair (0,0)?
The cost for 5 movie tickets is $42.50. If the price for every ticket is the same, write an equation to represent the cost (y) for any amount of movie tickets (x).
What is y=8.5x?
The circular area covered by a radar signal has a diameter of 40. What is the approximate area of this circular area?
What is 1256 feet?
A deposit of $500 in an account earns 6% simple interest. How much interest will it earn in 2 years?
What is $60?