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adoni [48]
3 years ago
9

if 3 1/2 cups of flour are used with 1 1/4 cups of brown sugar, how much sugar is used when 10 1/2 cups of flour is used?​

Mathematics
1 answer:
pickupchik [31]3 years ago
3 0
Step by step equation
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OlgaM077 [116]

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Step-by-step explanation:

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Alana bought a stock, which dropped 10% from the previous day. The value of her stock, after the price drop was $305 Wh ch equat
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If the original price was 'p', the new price would be 'p - 10%p' or 'p - 0.1p'. We know this is equal to 305, so 'p - 0.1 p = 305' would be the equation.
7 0
3 years ago
The lifetime of a certain type of battery is normally distributed with mean value 13 hours and standard deviation 1 hour. There
Mariana [72]

Answer:

13.55 hours

Step-by-step explanation:

given that the  lifetime of a certain type of battery is normally distributed with mean value 13 hours and standard deviation 1 hour.

Sample size=n =9

Sample mean = \bar X is N(13, 1/3)

Let c be the  lifetime value is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packages

Then we have P(X>c) =0.05

Convert into Z score to get

P(\frac{x-13}{1/3} >z) = 0.05\\

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Hence x = 13+\frac{1.645}{3} \\=13+0.548\\=13.548

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8 0
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