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insens350 [35]
3 years ago
8

Fraction 3/8 to percent?

Mathematics
2 answers:
nadezda [96]3 years ago
8 0

Answer:

37.5%

Step-by-step explanation:

Well we know that 3/8 equals 3 divided by 8 so that is .375 and if we multiply by 100 we get 37.5

also here is a calculator I use for harder conversions

https://www.calculatorsoup.com/calculators/math/fraction-to-percent-calculator.php

arsen [322]3 years ago
7 0

Answer:

37.5 percent or just 37

Step-by-step explanation:

You have to do 3 divided by 8 which gets you 0.375, once you do that, you move thr decimal to places to the right. Hopefully this helps.

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The lifetime of a battery in a certain application is normally distributed with mean μ = 16 hours and standard deviation σ = 2 h
DaniilM [7]

Answer:

Probability that a battery will last more than 19 hours is 0.0668.

Step-by-step explanation:

We are given that the lifetime of a battery in a certain application is normally distributed with mean μ = 16 hours and standard deviation σ = 2 hours.

<em>Let X = lifetime of a battery in a certain application</em>

So, X ~ N(\mu=16,\sigma^{2} =2^{2})

The z-score probability distribution for normal distribution is given by;

               Z = \frac{  X -\mu}{\sigma}  ~ N(0,1)

where, \mu = mean lifetime = 16 hours

            \sigma = standard deviation = 2 hours

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X.

So, the probability that a battery will last more than 19 hours is given by = P(X > 19 hours)

  P(X > 19) = P( \frac{  X -\mu}{\sigma} > \frac{19-16}{2} ) = P(Z > 1.50) = 1 - P(Z \leq 1.50)

                                              = 1 - 0.9332 = 0.0668

<em>Now, in the z table the P(Z </em>\leq<em> x) or P(Z < x) is given. So, the above probability is calculated by looking at the value of x = 1.50 in the z table which has an area of 0.9332.</em>

Hence, the probability that a battery will last more than 19 hours is 0.0668.

5 0
3 years ago
Solve for x. 4^(×-1)=1<br>​
steposvetlana [31]

Answer:

4^{\left(x-1\right)}=1

\Rightarrow\left(x-1\right)\ln \left(4\right)=\ln \left(1\right)

\hookrightarrow x=1

❅❅❅❅❅❅❅❅❅❅

OAmalOHopeO

❅❅❅❅❅❅❅❅❅❅

8 0
2 years ago
Matrices C and D are shown below.
yKpoI14uk [10]

Answer:

it's b

Step-by-step explanation:

hope this helps! :D

4 0
3 years ago
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Elena has $240 in the bank. She withdraws $15 each week to pay for her piano lessons. How many lessons can she afford with her s
Ivahew [28]
16 lesson. The equation is 240÷15=16
And like I said 240÷15 is 16
So here I hope it helped You
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6 0
3 years ago
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pantera1 [17]
It's B 5t+4t=3 thats the original answer
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3 years ago
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