Respuesta :
Answer: 42
Step-by-step explanation:
Let x be the number of  carnations ordered.
Then, the number of roses = 3x
Also, He ordered a total of 56 flowers.
Then, according to the question, we have
[tex]3x+x=56\\\\\Rightarrow\ 4x=56\\\\\Rightarrow\ x=\dfrac{56}{7}=14[/tex]
Now, the number of roses = 3(14)=42
Hence, Mr. Adams ordered 42 roses.