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Readme [11.4K]
2 years ago
9

Can sb explain why there's letters in math...????

Mathematics
1 answer:
andriy [413]2 years ago
5 0
They're called variables (this sounds like vary because the number that a letter could represent varies) so when i say 1 + x = 3 it is saying that they don't know the value of x yet but of course you can solve that by subtracting 1 from 3 which is 2
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3 years ago
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Answer:

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Step-by-step explanation:

Assuming the sample is a good representation of the people from the United States.

Since there were 1,000 surveyed... and 638 of them were wearing glasses,  that makes a proportion of 638 out of  1,000 people, or 63,8 / 100 people... so 63.8%... or 0.638

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Step-by-step explanation:

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3 years ago
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