Worksheetsscale factor/spiral - 10/9/19
Total questions: 45
Worksheet time: 2hrs 33mins
A map has a scale of 1 cm:5km. On the map, two cities are 3 cm apart. What is the actual distance between these cities?
1.7 km
5 km
15 km
17 km
Pedro and his friends are visiting chocolate shops in Fairview. They take a cab from one chocolate shop to another. On a map, the two are separated by 3 centimeters. If the scale of the map is 1 centimeter : 2 kilometers, then what is the actual distance between the two chocolate shops?
____ = ____
1/2 kilometer
1.5 kilometers
6 kilometers
3 kilometers
____ = ____
Megan drew a scale drawing of a house and its lot. The scale she used was 1 inch : 2 feet. The backyard is 78 feet long in real (actual) life. How long is the yard in the drawing?
____ = ____
39 inches
156 inches
38 inches
157 inches
Jamie made a scale drawing of his apartment building. The building is 300 ft tall. He wants his scale to be 1 inch : 10 ft. How tall should his building be in his scale drawing?
25 inches
60 inches
1/30 inch
30 inches
Which one is an example of the scale written as a scale without units.
Scale:
15 ft : 10 yds
1 to 30
15 to 30
30 to 15
15 to 10
What is the measurement of x?
20 m
24 m
16 m
4 m
The scale drawing car length is 3 cm. If the scale is 1 cm:4 ft, what is the actual car length?
12 feet
16 feet
10 feet
4 feet
Which scale factor is an example of an enlargement?
r = 1/2
r = 1
2:3
r = 2.5
Which scale factor is an example of a reduction?
r = 1/2
r = 1
3:2
r = 25
A model of a house was built using the scale 5 in:25 ft. If a window in the model is 1.5 in. wide, how wide is the actual window?
90 ft
7.5 ft
4.5 ft
45 in
A scale model of a house is 1 ft long. The actual house is 36 ft long. In the model, the door is 2 in. high. How many feet high is the actual door?
12 feet
6 feet
18 feet
4 feet
Write the equation for the table given
y = 1/3x
y = 3x
y = 3
x = 3y
What is the constant of proportionality?
1
2
3
4
Is this table proportional?
yes because it will go through the origin and is a straight line
no because the C.O.P. for each line is different
yes because it increases by 1
no because there is no (0 ,0 )
Write the equation.
You earn $18 for every hour you work.
y=(18/2)x + 0
y = 18x
y = 2x + 18
y = 18x + 2
Write the equation.
Bob has $150 in his savings account and saves $40 per month.
150 + 40= y
40x + 150= y
150x + 40 = y
190 x = y
What is the x-axis label?
iPhone Charging Speed
Time (minutes)
Capacity (% charged)
The origin
What is the meaning of the point (0, 40)?
The battery has a 0% charge after 40 minutes
It takes 40 minutes to charge the phone to 0%
The battery begins with a 40% charge
The battery dies after 40 minutes
Does this graph represent a proportional relationship?
Yes, because it doesn't start at the origin.
Yes, because it shows a constant rate of change.
No, because it doesn't start at the origin.
No, because it shows a constant rate of change.
Does this graph represent a proportional relationship?
Yes
No
Write the equation.
A holiday meal costs $12.50 a person plus a delivery fee of $30.
y = 30 + 12.5x
y = 12.5 + 30
y = 12.5 + 30x
How much money ($) would she earn in 5 days?
$70
$80
$16
$56
What is the meaning of the point (0, 0)?
She walks 0 dogs in 0 hours
She spends 0 dollars in 0 weeks.
She bakes 0 cookies in 0 days.
She earns 0 dollars in 0 days.
Which of the following are scaled copies of the original portrait? Select ALL the apply.
A
B
C
D
E
Which of the following are scaled copies of the original image? Select ALL that apply
A
B
C
D
Is Figure B a scaled copy of Figure A?
Yes
No
Is Figure B a scaled copy of Figure A?
Yes
No
Is Figure B a scaled copy of Figure A?
Yes
No
