Question

what does the bar model represent?
complete the statement.
the price of a plain bowl plus the price
of 3 extra ingredients equals $ 13 .
find possible values of b and n.

b =

n = ?

bar model: a green rectangle labeled b, followed by three green rectangles each labeled n, with a total length labeled 13

Explanation:

Step1: Identify the equation

From the bar model: $b + 3n = 13$

Step2: Choose a value for n

Let $n = 2$ (a positive number for price)

Step3: Calculate b

$b = 13 - 3(2) = 13 - 6 = 7$

Answer:

$b = 7$, $n = 2$ (Other valid pairs like $b=10, n=1$ also work)