Measurement Changing Customary Units Worksheet - Chapter 6 Ratios And Proportions Page 3
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1
2
3
4
5
61
_
2
1
_
2
1
_
4
3
_
4
1
_
2
_
1
4
COSTUMES
Umeka needs 4
feet of fabric to make a costume for a
2
play. How many yards of fabric does she need?
1 yd
_
1 yd
_
_
_
Since 1 yard = 3 feet, multiply by
.
1
1
4
ft = 4
ft ·
3 ft
Then, divide out common units.
2
2
3 ft
3
_
1
_
_
9
1
Write 4
as an improper fraction. Then
=
·
yd
2
3
2
divide out common factors.
1
_
_
3
1
=
yd or 1
yd
Multiply.
2
2
_
1
So Umeka needs 1
yards of fabric.
2
Complete.
2,640 ft =
5 pt =
qt 2
mi
d.
e.
100 oz =
76c =
lb 6
gal 4
f.
g.
3 c =
18 in. =
pt 6
ft 1
h.
i.
FOOD
A 3-pound pork loin can be cut into 10 smaller pork chops of
j.
equal weight. How many ounces does each pork chop weigh? 4.8 oz
You can also convert from one rate to another by multiplying by a unit
rate or its reciprocal.
Convert Rates
5
HELICOPTERS
A helicopter flies at a rate of 158 miles per hour.
How many miles per second is this?
_
1 h
Since 1 hour = 3,600 seconds, multiply by
.
3,600 s
_
_
_
158 mi
158 mi
1 h
_
1 h
=
×
Multiply by
.
3,600 s
3,600 s
h
1 h
_
_
158 mi
1 h
=
×
Divide out common units.
3,600 s
1 h
_
0.04 mi
≈
Simplify.
1 s
So, a helicopter flies approximately 0.04 mile per second.
FISH
A swordfish can swim at a rate of 60 miles per hour. How
k.
Real-World Link
many feet per hour is this? 316,800 ft/h
A swordfish reaches
a maximum size of
WALKING
Ava walks at a speed of 7 feet per second. How many
l.
14 feet and almost
1,200 pounds.
feet per hour is this? 25,200 ft/h
Source: Sport Fishing Central
300
Chapter 6 Ratios and Proportions
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