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goldenfox [79]
3 years ago
9

[IMAGE] please help me with 1, 2, and 3

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
7 0

Answer:

1. 5n + 10d = 90

2. (18,0)

3. (0,9)

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Answer:

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Step-by-step explanation:

A book cost $3

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3b÷3=81÷3

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Thus, Using division equality property to solve for b. b=27


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