SOLUTION: The ratio of the number of long term parking spaces to the number of short term parking spaces in Farmington Airport is 5 to 7. The ratio of the number of short term parking spaces

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Question 1077249: The ratio of the number of long term parking spaces to the number of short term parking spaces in Farmington Airport is 5 to 7. The ratio of the number of short term parking spaces to the number of parking spaces in the cell phone parking is 8 to 9. There is the total of 3180 parking spaces at the airport. How many parking spaces in the cell phone parking are there?
Answer by josgarithmetic(39623)   (Show Source): You can put this solution on YOUR website!
long term  :  short term   :   cell phone spaces
    5      :     7         :
           :     8         :        9


Get long term for the second row using factor .


long term  :  short term   :   cell phone spaces
    5      :     7         :
   40/7    :     8         :        9


Multiply accross second row by 7.
long term  :  short term   :   cell phone spaces
    5      :     7         :
   40      :     56        :        63

Second row ratio is all whole numbers.


How many cell phone spaces?

1260 cell phone spaces
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