Answer:
The average weight of the newborn otter is [tex]\frac{71}{40}\ kg.[/tex]
Step-by-step explanation:
Given:
A baby otter was born 3/4 of a month early at first it's weight was 7/8 kg which is 9/10 kg less than the average weight of newborn otter in the aquarium.
Now, to find the average weight of the newborn otter.
Let the average weight of the newborn otter be [tex]x.[/tex]
It's weight was = [tex]\frac{7}{8} \ kg.[/tex]
It's weight is less than the average weight of newborn by = [tex]\frac{9}{10} \ kg.[/tex]
According to question:
[tex]x-\frac{9}{10}=\frac{7}{8}[/tex]
Adding both sides by [tex]\frac{9}{10}[/tex] we get:
[tex]x=\frac{9}{10} +\frac{7}{8}[/tex]
[tex]x=\frac{36+35}{40}[/tex]
[tex]x=\frac{71}{40} \ kg.[/tex]
Therefore, the average weight of the newborn otter is [tex]\frac{71}{40}\ kg.[/tex]