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Degger [83]
3 years ago
13

Simplifying algebraic expressions 4t+3t-5-7t

Mathematics
1 answer:
Elden [556K]3 years ago
5 0
4t + 3t - 5 - 7t 
answer: -5
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The music department orders 4 times as many Rock CDs as Jazz CDs. If the department orders 550. CDs, how many of CDs are rock?​
jek_recluse [69]

Answer:

440 Rock CDs

Step-by-step explanation:

Let number of rock CDs be "r", and

number of Jazz CDs be "j"

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r = 4j

Total of 550 CDs, thus we can write equation 2:

r + j = 550

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r = 4j

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What is the dimension of this matrix?
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4 by 3 matrix.

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