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There are d dogs that live in Stacy’s neighborhood. There are 3 times as many cats, c, that live in her neighborhood as dogs. In Stacy’s neighborhood there are 18 cats. Which statement about this situation is true?
A. The situation can be represented by the equation 3c = d; therefore, since there are 18 cats there are also 6 dogs.
B. The situation can be represented by the equation 3c = d; therefore, since there are 18 cats there are also 54 dogs.
C. The situation can be represented by the equation 3d = c; therefore, since there are 18 cats there are also 6 dogs.
D. The situation can be represented by the equation 3d = c; therefore, since there are 18 cats there are also 54 dogs.

Sagot :

Rudolphidn
C. because if you substitute 18 cats into the equation "3d=c"
then heres your solution:
3d=18
divide both sides by three to cancel out 3d
then youll be left with: d=6