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Alla [95]
3 years ago
12

which inequality represents the following situation 3/5 times 5 less than a number is no more than 27

Mathematics
1 answer:
andrey2020 [161]3 years ago
6 0

The answer is \frac{3}{5}(x-5) \leq 27


Let's build the expression piece by piece, translating sentences into formulas:


"3/5 times..." \to \frac{3}{5} \times \ldots


"5 less than a number..." \to x-5 \ldots


So, the first block becomes


"3/5 times 5 less than a number..." \to \frac{3}{5}(x-5) \ldots


"...is no more than 27" \ldots \leq 27


So, putting the pieces together, you have the answer



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The amount of time people spend exercising in a given week follows a normal distribution with a mean of 3.8 hours per week and a
Travka [436]

Answer:

i and iii) In the figure attached part a we have the illustration for the area required for the probability of less than 2 hours and in b the illustration for the probability that X would be between 2 and 4

ii) P(X

And using the normal standard table or excel we got:

P(z

iv) P(2

And we can find the probability with the following difference and usint the normal standard distirbution or excel and we got:

P(-2.25

Step-by-step explanation:

Let X the random variable that represent amount of time people spend exercising in a given week, and for this case we know the distribution for X is given by:

X \sim N(3.8,0.8)  

Where \mu=3.8 and \sigma=0.8

Part i and iii

In the figure attached part a we have the illustration for the area required for the probability of less than 2 hours and in b the illustration for the probability that X would be between 2 and 4

Part ii

We are interested on this probability:

P(X

We can use the z score formula given by:

z=\frac{x-\mu}{\sigma}

Using this formula we have:

P(X

And using the normal standard table or excel we got:

P(z

Part iv

We want this probability:

P(2

Using the z score formula we got:

P(2

And we can find the probability with the following difference and usint the normal standard distirbution or excel and we got:

P(-2.25

3 0
4 years ago
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Mamont248 [21]
The answer is B because facts
3 0
3 years ago
The volume of a rectangular prism can be computed using the formula V = lwh. What is the height of a prism that has a volume of
AnnZ [28]
18x11=198
198x12= 2376






4 0
3 years ago
81 + 9 = 9+81<br> true or false
alina1380 [7]

Answer:

true

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7 0
4 years ago
Please answer this correctly
maria [59]

Answer:

The total weight would be 5 lbs 12 oz.

Step-by-step explanation:

First, combine the ounces:

13 + 15 = 28 ounces

Next, convert that into pounds and ounces.

28 oz = 1 lb + 12 oz

Finally, add the weight back to the 4 lb.

1 lb + 4 lb + 12 oz = 5 lb + 12 oz

3 0
4 years ago
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