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3 years ago

It cost Evan $17.70 to send 177 text messages. How many text messages did he send if he spent $19.10?

Mathematics

1 answer:

rusak2 [61]3 years ago

6 0

Answer:

191

Step-by-step explanation:

The amount spent for a single text: 177/17,7=0,1

x×0,1=19,1

x=19,1/0,1

x=191

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The thickness of a protective coating applied to a conductor designed to work in corrosive conditions follows a uniform distribu

pochemuha

Answer:

$P(24< X$

And replacing we got:

$P(24< X$

Step-by-step explanation:

We can define the random variable X as the thickness of a protective coating applied to a conductor designed to work in corrosive conditions. And the distribution for X is given by:

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And we want to find this probability:

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And in order to find this probability we can use the cumulative distribution function given by:

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And if we use this formula for the probability desired we have:

$P(24< X$

And replacing we got:

$P(24< X$

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