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jasenka [17]
3 years ago
14

Help me please it’s to hard

Mathematics
1 answer:
Alina [70]3 years ago
6 0

Answer:

r=56

Step-by-step explanation:

252= r * 4.5

r * 4.5 = 252

r * 4.5 * 10 = 252 * 10

45r = 2520

r = 56

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Answer:

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Step-by-step explanation:

(-7/2z +4)+(1/5z -15)

from BODMAS, solving the one in the bracket

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7 0
3 years ago
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Answer:

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Step-by-step explanation:

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