Answer:
Equation for the relationship between the weight and number of months -
[tex]W(t) = W(0) + 6 * t[/tex]
Step-by-step explanation:
Given
The initial weight of young sumo wrestler just before he decide to gain more weight is equal to [tex]90[/tex] kilo grams.
The new weight of young sumo wrestler after eight months is equal to [tex]138[/tex] kilo grams.
Weight gained by sumo wrestler during the period of eight months
[tex]138 -90\\= 48[/tex]
The rate at which weight was gained
[tex]\frac{48}{8}[/tex]
[tex]6[/tex] kilo grams per month
Let W(t) depict the weight after 8 months
t depict the time period in moths
So the equation would be
[tex]W(t) = W(0) + 6 * t[/tex]
Where
[tex]W(0) =[/tex] Initial weight before 8 months
[tex]t =[/tex] time in months