SOLUTION: Which rates are equivalent? A.) 36 U.S. dollars 54 U.S. dollars 48 Canadian dollars 72 Canadian dollars B.) 18 U.S. dollars 45 U.S. dollars 24 Cana

Algebra ->  Customizable Word Problem Solvers  -> Finance -> SOLUTION: Which rates are equivalent? A.) 36 U.S. dollars 54 U.S. dollars 48 Canadian dollars 72 Canadian dollars B.) 18 U.S. dollars 45 U.S. dollars 24 Cana      Log On

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Question 113883: Which rates are equivalent?
A.) 36 U.S. dollars 54 U.S. dollars
48 Canadian dollars 72 Canadian dollars
B.) 18 U.S. dollars 45 U.S. dollars
24 Canadian Dollars 48 Canadian dollars
C.) 18 U.S. dollars 54 U.S. dollars
24 Canadian dollars 60 Canadian dollars
D.) 48 U.S. dollars 72 U.S. dollars
64 Canadian dollars 128 Canadian dollars
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
36/48=54/72 OR CROSS MULTIPLYING WE GET 2592=2592 THESE ARE EQUAL.
18/24=45/48 OR 1080=864 THESE ARE NOT EQUAL
18/24=54/60 OR 1296=1080 THESE ARE NOT EQUAL
48/64=72/128 OR 4608=4608 THESE ARE NOT EQUAL.
A SHORT CUT METHOD IS:
MULTIPLY THE UNITS DIGITS.
EXAMPLE 8*4=32 & 2*6=32 THESE MAY BE EQUAL.
4*4=16 & 0*8=0 THESE WILL NOT BE EQUAL.
4*2=8 & 8*8=64 THESE WILL NOT BE EQUAL.