Scale Copies
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Unit Rates
Dividing Fractions
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100
What is the scale factor from A to B?
4
100
Jason enlarged an 8 by 10 image to 16 by 18. Is this a scale copy?
No. A scale copy would be 16 by 20.
100
A car travels 120 miles in 2 hours. What is the unit rate in miles per hour?
60 mph
100
Divide.
7/2 divide 1/2 =
7
(14/2)
100
Is t= 7 a solution to this equation?
11t = 77
Yes
11(7)=77
77=77
200
What is the scale factor from A to B?
1/2 or 0.5
200
Helen reduced a 5 by 7 image to 2.5 by 3.5. Is this a scale copy?
Yes. The scale factor is 0.5 or
1/2
200
A car can travel 360 miles on 12 gallons of gas. What is the car's unit rate in miles per gallon?
30 mpg
200
Divide.
7/9 ÷ 1/3=
21/9 or 2 3/9 or 2 1/3
200
What is this fraction written in simplest terms?
15/50
3/10
300
Which side in the second polygon corresponds to segment BC?
segment FG
300
On a scale drawing, 5 units represents 20 miles. What is the scale of 1 unit?
1 unit represents 4 miles
300
A 20-pack of pencils costs $4.00. How much per pencil?
$0.20
(20 cents)
300
Divide.
8/5 divide 1/4 =
32/5 or 6 2/5 or 6.4
300
Put these numbers in order from least to greatest.
8 1/2, 8.2, 8 1/10
8 1/10, 8.2, 8 1/2
400
If polygon EFGH is a scale copy of polygon ABCD, how many units long is segment FG?
8 units
400
A scale on a blue print drawing of a house shows that 6 centimeters represents 3 meters.
What number of centimeters on the blue print represents an actual distance of 27 meters?
54 cm
400
A recipe requires 7 1/2 cups of flour for every 3 eggs used. How much flour is needed for just 1 egg?
15/6 or 2 1/2
400
Divide.
2 3/5 divide 3/4 =
52/15 or 3 7/15
400
Simplify.
(-44)/-2 =
22
500
What is the scale factor from ABCD to EFGH?
2
500
Jaylynn draws a hen on graph paper using the scale shown below. The hen has a height of 16 units in the drawing. What is the height, in cm, of the actual hen?
48 cm
500
Jimena ran
1 3/4
miles in
2/3
of an hour. How many miles can she run in 1 hour?
2 and 5/8 miles
500
Divide.
3 1/5 ÷ 1 1/2 =
32/15 or 2 2/15
500
Solve using order of operations:
1/3(-4-5)+2(5) =
7