What is 1in:25 mi or 1 in to 25 mi or 1 in = 25 mi or 1 in / 25 mi
100
Suggest an appropriate unit for a rate that describes the growth rate of a plant
What is inches per year or mm per day or inches per month are examples. (NOT feet or yards per day or week, but possibly per year)
100
Tell whether the figures on the grid are similar. IF they are, write a similarity statement using ~ and give the scale factor. IF they are not, explain why.
What is Similar; ABCD~HEFG Scale factor is 2 or 1/2
200
Solve the proportion 14 in/x = 21 in/12 yd for x
What is 8 yd
200
Give a reciprocal unit rate that has the same meaning as 5 feet per second.
What is 0.2 second per foot or 1/5 seconds/foot
200
Two triangles are similar with the scale factor 4. The smaller triangle has perimeter 7 inches and area 5 inches squared. Find the perimeter and area of the larger triangle.
What is Perimeter = 28 inches and area is 80 inches squared
300
A model train is 35 in. long. Find the length of the actual train if the scale is 7 in:90 ft.
What is 450 ft
300
Convert 360 miles per hour to miles per minute.
What is 6 miles per minute.
300
Two similar octagons have an area ratio of 81. Find the perimeter ratio and the scale factor from the smaller to the larger.
What is perimeter ratio is 9 and scale factor is 9
400
Find the scale of the map if a 63 km wide canyon is 14 cm wide on the map.
What is 1 cm = 4.5 km
400
Dr. Acevedo earns $55/hour. Convert this rate to cents per second.
What is ~1.5 cents/second
400
Hal wants to reduce a 4 in x 6 in photograph to fit a space 3 in. high. How wide a space does he need?
What is 4.5 inches
500
Devesh left school at 3:45 pm and rode his bike home at a rate of 10 mi/hr. If his home is 7 mi away from school, when did he arrive?
What is 4:27
500
An artist is drawing a larger version of the monster in a poster. The scale factor from the figure to the enlargement is 7/3. IF the figure has an area of 108 cm squared, what with the area of the larger one be?
What is 588 cm squared
500
A model of a 26 ft tall dinosaur has to fit into a museum with 9 foot ceilings. Suggest an appropriate scale for the model