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Paraphin [41]
3 years ago
12

Find the equivalent expression to 9(2a+1)

Mathematics
2 answers:
Alla [95]3 years ago
8 0

Answer:

18a +9

Step-by-step explanation:

9(2a+1)

The first step is to distribute the 9

9*2a+9*1

18a +9

goldfiish [28.3K]3 years ago
8 0

Answer:

18a +9

Step-by-step explanation:

I think..

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For the 8% solution with the same amount of dry substance, use the ratio of percentages, multiplied by the mass of the first solution to get the wanted amount of new solution:
3/8 * 150 g = 56.35 g
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Answer:

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Step-by-step explanation:

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