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1 of 8 0-day streak

Multiply a matrix by a scalar

Question 1 of 8

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Matrix \(C\) records the number of parts needed to build one model of each design at a hobby workshop, by part type and design

In the matrix, the rows are Bolts, Clips (top to bottom) and the columns are Design A, Design B (left to right)

\[C = \begin{bmatrix} 10 & 5 \\ 5 & 6 \end{bmatrix}\]

An order has come in for 5 models of each design, so every quantity in the table is needed 5 times

(a)4 marks

Find \(5C\), the matrix showing the number of parts of each type needed for the whole order

5C
(b)1 mark

How many bolts are needed altogether for the Design A models?