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This equation shows how the total number of appetizer recipes Kimi knows depends on the number of weeks she attends culinary school. $\newline$ $a = w + 13$ $\newline$ The variable $w$ represents the number of weeks she has attended culinary school, and the variable $a$ represents the total number of appetizer recipes she knows. After $4$ weeks of culinary school, how many total appetizer recipes will Kimi know? $\newline$ _____ appetizer recipes

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Find a value using two-variable equations: word problems

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Q. This equation shows how the total number of appetizer recipes Kimi knows depends on the number of weeks she attends culinary school.

\newline

a = w + 13

\newline

The variable

w

represents the number of weeks she has attended culinary school, and the variable

a

represents the total number of appetizer recipes she knows. After

4

weeks of culinary school, how many total appetizer recipes will Kimi know?

\newline

_____ appetizer recipes

Identify variable for $4$ weeks: Identify the variable that $4$ weeks corresponds to. $\newline$ $w$ represents the number of weeks Kimi has attended culinary school. So, $4$ weeks gives the value for $w$ .
Substitute value into equation: Substitute the value of $w$ into the equation $a = w + 13$ . $\newline$ $a = w + 13$ $\newline$ Substitute $w$ with $4$ . $\newline$ $a = 4 + 13$
Calculate total number: Calculate the total number of appetizer recipes Kimi knows. $\newline$ $a = 4 + 13$ $\newline$ $a = 17$

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