Answer:
86
Step-by-step explanation:
The dimensions of the matrix are 3 by 3 i.e. 3 x 3, and the indicated element a₂₃ is -7
<h3>The dimension of the matrix?</h3>
From the figure in the question, we have the following highlights:
- The matrix has 3 rows
- The matrix has 3 columns
The dimensions of a matrix are represented by: Row by column
Hence, the dimensions of the matrix are 3 by 3
<h3>The indicated element</h3>
This is given as:
a₂₃
This means that the element is located at the second row and the third column.
The element at this position is -7
Hence, the indicated element is -7
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84 cupcakes
---------- = divide top and bottom by 1.6= 52.5 cupcakes/1 hour
1.6 hours
so if she can bake 52.5 cupcakes in 1 hours,
multiply by 2 to get 105 cupcakes in 2 hours.
