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3 years ago

A teacher is writing an exam with 60

Mathematics

1 answer:

Mumz [18]3 years ago

7 0

20 is the answer your welcome you will get it right don’t worry

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A car dealership is having a sale in which you pay 85% of the retail price for a new vehicle. keith is buying a vehicle with a r

sertanlavr [38]

The answer should be <span>4819.5 :)</span>

4 0

3 years ago

I'm not really good at these types of questions would really appreciate some help.

Lunna [17]

Answer:

Thanks!

Step-by-step explanation:

The falling leaves and the draining of the pool signal an end and parallel the end of the illusion and the end of Gatsby's life.

7 0

3 years ago

Carlos has 30 packs of shirts he puts 10 in each 5 boxes does he left overs

Len [333]

He has two boxes left

8 0

3 years ago

The ages of students in a school are normally distributed with a mean of 15 years and a standard deviation of 2 years. Approxima

worty [1.4K]

We have been given that the ages of students in a school are normally distributed with a mean of 15 years and a standard deviation of 2 years.

We are asked to find the percentage of students that are between 14 and 18 years old.

First of all, we will find z-score corresponding to 14 and 18 using z-score formula.

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

$z=\frac{14-15}{2}$

$z=\frac{-1}{2}$

$z=-0.5$

Similarly, we will find the z-score corresponding to 18.

$z=\frac{18-15}{2}$

$z=\frac{3}{2}$

$z=1.5$

Now we will find the probability of getting a z-score between $-0.5$ and $1.5$ that is $P(-0.5$ .

$P(-0.5$

Using normal distribution table, we will get:

$P(-0.5$

Let us convert $0.62465$ into percentage.

$0.62465\times 100\%=62.465\%\approx 62.5\%$

Therefore, approximately $62.5\%$ of the students are between 14 and 18 years old.

8 0

3 years ago

Read 2 more answers

Ed needed to extend the string on his kite. The current string was eight and three fourths feet. He cut a piece of string that m

Pani-rosa [81]

The new length of the string is (13 + 1/4) feet, then the correct option is the last one (counting from the top)

<h3> What is the new length of the string?</h3>

We know that the current string was (8 + 3/4) feet in length. Then they add another piece that measures 4.5 feet.

The new length of the string is given by the addition of the above two lengths, we will get:

L = (8 + 3/4) feet + 4.5 feet

We can rewrite the second length as a mixed number:

4.5 = 4 + 1/2 = 4 + 2/4

Replacing that we get:

L = (8 + 3/4) ft + 4.5 ft

= (8 + 3/4) ft + (4 + 2/4) ft

= (8 + 4) ft + (3/4 + 2/4) ft

= 12ft + 5/4ft = 12ft + (4/4 + 1/4)ft = (13 + 1/4)ft

The new length of the string is (13 + 1/4) feet, then the correct option is the last one (counting from the top).

If you want to learn more about mixed numbers:

brainly.com/question/1746829

#SPJ1

6 0

2 years ago