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Ulleksa [173]
2 years ago
15

I think of a number and multiply it by 4. I then add 8 and I'm left with an answer of 30. What number did I think of? Form and s

olve an equation to find the number.
Mathematics
1 answer:
postnew [5]2 years ago
5 0

Answer: number= 5.5; equation: 4x+8=30

Step-by-step explanation:

Take x for the unknown number. Then just follow the words and turn them into mathematical symbols. Easy.

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Answer:

<em>The percent error of the cyclist's estimate is 5.63%</em>

Step-by-step explanation:

<u>Percentages</u>

The cyclist estimates he will bike 80 miles this week, but he really bikes 75.5 miles.

The error of his estimate in miles can be calculated as the difference between his estimate and the real outcome:

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To calculate the error as a percent, we divide that quantity by the original estimate and multiply by 100%:

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Rounding to the nearest hundredth:

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