Question

Write and solve an equation for the number of flats Yoshi should buy.

Short answer

The number of flats is 2.5.

Step-by-step solution

Step 1.  Given information.

A flat of plants contains 12 plants.

Number of rows = 3

Plant per row = 10

Step 2. Write the equation.

Consider the number of flats be n. The total number of rows is 3.

So, the total number of plants is given by

$3\times 10=30$

Then, the equation to find the number of flats is:

$12n=30$

Step 3. Solve the equation.

The equation$12n=30$can be written as in below.

role="math" localid="1642077880492" $$\begin{gathered} 12n=30 \\ n=\frac{30}{12} \\ n=2.5 \end{gathered}$$

Therefore, Yoshi should buy 2.5 flats.