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2 years ago

A packet of candles and box of matches cost #420. The candles cost 20 times as much as the matches

Mathematics

1 answer:

olga55 [171]2 years ago

6 0

Answer:

candles = $400

matches = $20

Step-by-step explanation:

Let cost of candles = $c

Let cost of matches = $m

c = 20 m (20 times m)

c + m = 420

20m + m = 420

21 m = 420

m = 20

c = 20 (20) = 400

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2 years ago

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<h3>Confidence interval</h3>

To determine what is the 92% confidence interval for the population mean of drivers that do not like driving at night, the following calculation must be performed:

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Therefore, the confidence interval for the mean population of drivers who do not like driving at night is 57.79% - 62.21%.

Learn more about confidence intervals in brainly.com/question/2396419

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