Q30. - Algebra 1

Question

COOKIES Bobby baked 2 dozen chocolate chip cookies, 3 dozen sugar cookies, and a dozen oatmeal raisin cookies. How many total cookies did he bake?

Step-by-Step Solution

Answer

The total number of cookies baked is 72.

Step 1 – Write the given information

Booby baked: 

2 dozen chocolate cookies, 3 dozen sugar cookies, and 1 dozen oatmeal raisin cookies.

Step 2 – Formula used

$1 \mathrm{dozen} \mathrm{cookies} = 12 \mathrm{cookies}$.

Step 3 – Find the total number of cookies baked

First note that:

$$\begin{gathered} 2 \mathrm{dozen} \mathrm{chocolate} \mathrm{cookies}=2\times 12=24 \mathrm{chocolate} \mathrm{cookies}, \\ 3 \mathrm{dozen} \mathrm{sugar} \mathrm{cookies}=3\times 12=36 \mathrm{sugar} \mathrm{cookies}, \mathrm{and} \\ 1 \mathrm{dozen} \mathrm{oatmeal} \mathrm{raisin} \mathrm{cookies}= 12 \mathrm{oatmeal} \mathrm{raisin} \mathrm{cookies}. \end{gathered}$$

Thus, the total number of cookies baked is:

$\begin{array}{c}\text{Total cookies}=24+36+12\\ =72\end{array}$

Thus, the total number of cookies baked is 72.