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3 years ago

On a school trip to a theme park, 4 busses each carry 70 students.

Mathematics

1 answer:

DanielleElmas [232]3 years ago

7 0

Answer:

165 Students Have No Made Plans For Lunch.

Step-by-step explanation:

According To the Question,

Given,On a school trip to a theme park, 4 busses each carry 70 students Then Total Number Of Students on a trip is 70×4=280 Students.

And,35% of the students are bringing their own lunch. Thus,35% Of 280 Students is 98 Students. Then Remaining 182 Students not bring their own lunch.

Now, 17 of the students are buying lunch when they get to the theme park. Thus students Who have not made plans for lunch is 182-17⇒165Students

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Answer:

Step-by-step explanation:

-(x-1) +5 = 2(x+3) - c

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Distribute the negative sign and the 2

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3 years ago

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Answer:

Step-by-step explanation:

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4 years ago

This scale drawing shows a parking lot. What is the length of the longer side of the actual lot?

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630 m c

Step-by-step explanation:

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3 years ago

a wooden box has external dimensions 40 cm by 34 cm by 30 cm. if the wood is 1 cm thick how many cm3 of wood is used in it ?

Westkost [7]

Answer:

6752 cm³ of wood

Step-by-step explanation:

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3 years ago

Read 2 more answers

The blood cholesterol levels of men aged 55 to 64 are approximately normally distributed with mean 222 mg/dl and standard deviat

tatiyna

Answer:

It is provided that 10% of the men aged 55 to 64 have cholesterol level 270 mg/dl or higher.

Step-by-step explanation:

Let X = blood cholesterol levels of men aged 55 to 64 years.

The random variable X follows a Normal distribution with mean μ = 222 mg/dl and standard deviation σ = 37 mg/dl.

It is provided that 10% of the men aged 55 to 64 have cholesterol level x mg/dl or higher.

Compute the value of x as follows:

$P(X\geq x)=0.10\\P(\frac{X-\mu}{\sigma}\geq \frac{x-222}{37})=0.10\\P(Z\geq z)=0.10\\1-P(Z$

Use the z-table to compute the value z for the probability 0.90.

The value of z is 1.29.

Compute the value of x as follows:

$z=\frac{x-\mu}{\sigma}\\1.29=\frac{x-222}{37} \\x=222+(1.29\times37)\\=269.73\approx270$

Thus, 10% of the men aged 55 to 64 have cholesterol level 270 mg/dl or higher.

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3 years ago