cross multiplication
TRANSCRIPT
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DO NowWhich is the better buy?
1. 5 lb for $37 or 8 lb for $43
Which car is going faster?
2. 340 miles over 5 hours or 536 miles over 7 hours.
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1 About 1 of every 10 people is left handed. How many would you predict to be left handed in this math class?
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2 A clock chimes 4 times each hour. How many times does it chime in a week?
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3 You are paid $47.25 for 7 hours of work. How much are you paid per hour?
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4 The table shows the costs of oranges at four grocery stores. Which grocery store prices its oranges using a constant unit rate?
A Store A
B Store B
C Store C
D Store D
A B C D
10 LB BAG
$11.70
$11.70 $12.00 $12.00
20 LB BAG
$22.90
$23.40 $24.00 $22.00
30 LB BAG
$33.60
$35.10 $35.00 $32.00
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Cross Product Property
Words:The cross products of a proportion are equal
Ex:
=
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