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kirill115 [55]
3 years ago
13

For problems 1-6, write equivalent expressions by combining like terms. 8b-4b

Mathematics
1 answer:
Alexandra [31]3 years ago
3 0

Answer:

4b this is the correct answer yes

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twenty seven out of forty dentists recommended a certain whitener for teeth. if 1080 dentists recommended the whitener in the su
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Answer:

1,600 dentists were surveyed in total.

Step-by-step explanation:

We can set up a proportion for this problem:

\frac{27}{40} = \frac{1080}{x}\\\\\\

Now we can cross multiply:

27*x = 1080*40\\\\27x = 43,200\\\\27x/27 = 43,200/27\\\\x = 1,600

1,600 dentists were surveyed in total.

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2 years ago
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Answer:

Step-by-step explanation:

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Step-by-step explanation:

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