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M1 2.2 Conversions
1
September 07, 2019
Mar 161:39 PM
M1 2.2 Conversions
2
September 07, 2019
Jun 2010:53 AM
learning targets
M1 2.2 Conversions
3
September 07, 2019
Review... what is the unit rate?Write it as (1, r) (1, 40)y = miles
x = hours= 80 miles
2 hours= 40 miles
1 hour
M1 2.2 Conversions
4
September 07, 2019
Aug 1312:24 PM
/ / #
Examples: Notes:
EQ: How can you write ratios of fractions as unit rates in order to solve problems?
M1- 2.2 Solving Problems with Ratios of Fractions
Complex Ratio: A ratio/rate in which one or both of the quantities being compared are written as fractions.
> Making Unit Rates: divide the denominator by that fraction to get 1.– Multiply by the reciprocal!4
1
41 =
=2 in1 hour
The bug travels ½ inch in ¼ hour.
M1 2.2 Conversions
5
September 07, 2019
Mar 164:14 PM
22 miles½ hour
300 yards½ minute
20 yards2½ seconds
200 yards minute5
6
page 62
M1 2.2 Conversions
6
September 07, 2019
22 miles½ hour
Ostrich
300 yards½ minute
Roadrunner
20 yards2½ seconds
Quail
200 yards minute5
6
Pheasant
page 64
M1 2.2 Conversions
7
September 07, 2019
12 in1 ft
63 in=5.25 ft1
Ahmed is 5.25 feet tall. How tall is he in inches?
M1 2.2 Conversions
8
September 07, 2019
30.48 cm1 ft
1463.04 mm=10 mm1 cm
4.8 ft1
Sophia is 4.8 feet tall. How tall is she in millimeters?1 cm = 0.39 in
M1 2.2 Conversions
9
September 07, 2019
=20 gal1 min
1 min60 sec
4 qts1 gal
80 qts60 sec
1.33 qts1 sec
=
The pool fills at a rate of 20 gallons per minute. What is the rate in quarts per second? (Round to the hundredths place)
M1 2.2 Conversions
10
September 07, 2019
Lori walks 5 miles per day to school. Convert to kilometers per minute. (Round to the thousandths place)
5 mi1 day
=1.61 km1 mi
1 day24 hr 60 min
8.05 km1440 min
= .006 km1 min
1 hr
1 mi = 1.61 km
M1 2.2 Conversions
11
September 07, 2019
Mar 177:48 PM
K H D U D C MM
6 km1 hour 1 km
1,000,000 mm 1 hour60 min
1 min60 sec
= 6,000,000 mm3600 seconds
5,000 mm3 sec
1666 23
mm
1 second= 1666.67mm
1 second=
=
M1 2.2 Conversions
12
September 07, 2019
Mar 178:19 PM
You can rent a recording studio for $1,275.00 per day.
What is the rate of English Pounds (£) per year?
($1.31 = £1)
$12751 day
£1$1.31
365 days1 year
= £465,3751.31 years
=
£355,248.091 year
M1 2.2 Conversions
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September 07, 2019
Mar 178:05 PM
K H D U D C MM
M1 2.2 Conversions
14
September 07, 2019
Mar 178:05 PM
1.2 km1 hour 1 km
100,000 cm 1 hour60 min 60 sec
1 min = 120,000 cm3600 sec
= 100 cm3 sec
33 13
cm per second
=
33.33 cm1 sec
=
M1 2.2 Conversions
15
September 07, 2019
Mar 178:28 PM
Homework: Dimensional Analysis WorksheetSHOW ALL WORK!!!