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 dogs and cats 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     

Answer by checkley79(3341)   (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

 

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