SOLUTION: The number of cats in the United States exceeds the dog population by 7.5 million. The number of cats and dogs combined is 114.7 million. Determine the number of dogs and cats in

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Question 662163: The number of cats in the United States exceeds the dog population by 7.5 million. The number of cats and dogs combined is 114.7 million. Determine the number of dogs and cats in the United States.
Found 2 solutions by ewatrrr, checkley79:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

The number of cats in the United States exceeds the dog population by 7.5 million.  

The number of cats and dogs combined is 114.7 million.  

Determine the number of dogshighlight%28x%29 and catshighlight%28y%29 in the United States.

Algebraicly Question states*** 

x = y + 7.5M

x + y = 114.7M



x -y  =     7.5

x +y = 114.7

   2x = 122.2

    x = 61.1M cats  and 53.6M dogs    61.1-7.5

Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
C=D+7,500,000
C+D=114,700,000
(D+7.500.000)+D=114,700,000
2D+7,500,000=114,700,000
2D=114,700,000-7,500,000
2D=107,200,000
D=107,200,000/2
D=53,600,000 NUMBER OF DOGS.
C=53,600,000+7,500,000
C=61,100,000 NUMBER OF CATS.
PROOF:
61,100,000+53,600,000=114,700,000
114,700,000=114,700,000