Answer: 1:60
Step-by-step explanation:
Given
The actual titanic is 175 ft tall
Tilda's model is 35 inches tall
first, convert inches into ft
[tex]35\ in.\equiv \dfrac{35}{12}\ ft[/tex]
scale used is
[tex]\Rightarrow \dfrac{\dfrac{35}{12}}{175}\\\\\Rightarrow \dfrac{35}{12\times 175}\\\\\Rightarrow \dfrac{1}{12\times 5}=\dfrac{1}{60}[/tex]
Thus, the scale is 1:60