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This equation shows how the total distance Estelle has walked depends on the number of trips she has made to school. $\newline$ $d = t + 15$ $\newline$ The variable $t$ represents the number of trips she has made, and the variable $d$ represents the total distance walked in kilometers. After $1$ trip to school, how many kilometers will Estelle have walked in total? $\newline$ _____ kilometers

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Evaluate a linear function: word problems

Full solution

Q. This equation shows how the total distance Estelle has walked depends on the number of trips she has made to school.

\newline

d = t + 15

\newline

The variable

t

represents the number of trips she has made, and the variable

d

represents the total distance walked in kilometers. After

1

trip to school, how many kilometers will Estelle have walked in total?

\newline

_____ kilometers

Identify value of $t$ : Step $1$ : Identify the value of $t$ from the problem statement. We know that Estelle made $1$ trip to school, so $t = 1$ .
Substitute value into equation: Step $2$ : Substitute the value of $t$ into the equation $d = t + 15$ . This gives us $d = 1 + 15$ .
Calculate total distance: Step $3$ : Calculate the total distance $d$ . Adding up, $d = 16$ kilometers.

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