Question
The cost per hour for baking and decorating is given by the matrix below.Which product does it cost 6.50 to bake and decorate 1 unit? cost/hr baking decorating (} 4 7 ) a. 3-tired cake c.giant cookie b. sheet cake Please select the best answer from the choices provided A B c
Solution
4
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Vitória
Mestre · Tutor por 5 anos
Resposta
To find the product that costs
\begin{pmatrix} 4 \\ 7 \end{pmatrix}
\begin{pmatrix} x_1 \\ x_2 \end{pmatrix}
\begin{pmatrix} 4 \\ 7 \end{pmatrix} \begin{pmatrix} x_1 \\ x_2 \end{pmatrix} = \begin{pmatrix} 4x_1 \\ 7x_2 \end{pmatrix}
6.50:
Solving for x, we get:4x1 + 7x2 = 6.50We need to find the values of x1 and x2 that satisfy this equation. Since we don't have enough information to solve for both variables, we need to check the given options.Looking at the options, we can see that the sheet cake is the only one that has a cost of $6.50. Therefore, the answer is B.