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Question

Which of the following gives the number of tiles required to represent the expression 3(m + 4)?


A
3 red tiles, 9 yellow tiles
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B
3 red tiles, 12 yellow tiles
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C
3 red tiles, 4 yellow tiles
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D
12 red tiles, 3 yellow tiles
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Solution

The correct option is B 3 red tiles, 12 yellow tiles
Area represented by 1 red tile
= m sq units

Area represented by 1 yellow tile
= 1 sq unit

Break down the given expression as 3 times m and 3 times 4.

Hence, 3 red tiles and 12(3 sets of 4) yellow tiles are needed.

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