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A young sumo wrestler decided to go on a special diet to gain weight rapidly.

W represents the wrestler's weight (in kilograms) after
t months.

W=80+5.4 t
What was the wrestler's weight before his special diet?
kilograms

A young sumo wrestler decided to go on a special diet to gain weight rapidly. $\newline$ $W$ represents the wrestler's weight (in kilograms) after $t$ months. $\newline$ $W=80+5.4 t$ $\newline$ What was the wrestler's weight before his special diet? $\newline$ kilograms

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Write exponential functions: word problems

Full solution

Q. A young sumo wrestler decided to go on a special diet to gain weight rapidly.

\newline

W

represents the wrestler's weight (in kilograms) after

t

months.

\newline

W=80+5.4 t

\newline

What was the wrestler's weight before his special diet?

\newline

kilograms

Given Formula: We are given the formula for the wrestler's weight after $t$ months: $W = 80 + 5.4t$ . To find the wrestler's weight before his special diet, we need to determine the value of $W$ when $t = 0$ months.
Substitute $t = 0$ : Substitute $t = 0$ into the equation to find the initial weight ( $W$ ) of the wrestler. $\newline$ $W = 80 + 5.4(0)$
Perform Multiplication: Perform the multiplication: $5.4 \times 0 = 0$ . $\newline$ $W = 80 + 0$
Add to Find Weight: Add $80$ and $0$ to find the initial weight of the wrestler. $\newline$ $W = 80$

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