Answer:
The change applied to 7.849 is to multiply it by 0.1 to get 0.7849.
Step-by-step explanation:
We need to make 7 in 7.849 worth [tex]\frac{1}{10}[/tex].
Now, [tex]\frac{1}{10}[/tex] = 0.1
Thus, to make 7 in 7.849 worth 0.1, we multiply the number by 0.1
i.e. 7.849 × 0.1 = 0.7849
Hence, the change applied to 7.849 is to multiply it by 0.1 to get 0.7849.