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juin [17]
3 years ago
10

Use algebra tiles to find the difference. Let one yellow tile equal +1 and one red tile equal –1. 12 – (–9)

Mathematics
1 answer:
Monica [59]3 years ago
3 0

Answer:

21

Step-by-step explanation:

12 - (-9)

Open The bracket :

Recall: - * - = +

Hence,

12 + 9 = 21

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5 0
3 years ago
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Answer:

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8 0
3 years ago
( 1 0 3) + (4 1 7) The first entry of the resulting matrix is:
Mamont248 [21]
Hello!

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7 0
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Answer:

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