Vicki puts 10 books on a shelf. The 10 books take up 28 cm. What is the mean (average) thickness of her books? Can I have it worked out as well plz? I really need to understand it.

Answers

Answer 1

Answer: Average thickness of book = Total thickness/mo. of books
= 28 cm/ 10
= 2.8 cm
Thus, on average, each book has 2.8 cm thickness.

Answer 2

Answer: If the ten books are 28cm thick then the average thickness is 28 (the total thickness) divided by 10 (the number of books).

28cm divided by 10 is 2.8cm.

So the average thickness is 2.8cm!

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What is the LCD of 1/3 and 3/4 ?

Answers

The least common denominator (LCD) of the fractions 1/3 and 3/4, which is a common multiple of their denominators is: 12.

Recall:

LCD stands for "least common denominator" or "lowest common denominator".
LCD is the smallest multiple that is common among the denominators of a set of fractions.

Given two fractions, 1/3 and 3/4:

Their denominators are 3 and 4.

The common multiple between 3 and 4 is 12.

Therefore, the least common denominator (LCD) of the fractions 1/3 and 3/4, which is a common multiple of their denominators is: 12.

Learn more here:

brainly.com/question/10600831

♥For (3, 4) (denominators) the least common multiple is 12.
(least common multiple means LCM)

♥Therefore, the least common denominator is 12.

♥Rewriting as equivalent fractions with the LCD:
4/12, 9/12
♥Hope this helps!♥

For every person who has the flu there are 6 who have flu like symptoms resulting g from a cold. If a dr sees 40 people how many would you expect to have a cold

Answers

At least 24 people would have a cold.

About 5.7 people will have a cold so round down. That means 33 people will have a cold because 5.5x6 is 33 and 33+5.7= 39.7 nearly the 40 expect.

assume that the unit cost of making a product is $1.32. For every unit sold, the firm wants 20% to represent profit. Applying the standard markup approach, what should the selling price be?

Answers

Answer:

$1.26

Step-by-step explanation:

all you have to do is add 32+20=26 then bring down 1

What is 2 to the fourth power plus 81 minus 50 plus 5?

Answers

I believe it is 52. Sorry if I'm wrong.

Answer:52

Step-by-step explanation:

2^4 = 16

Then..

16+81 =97

Then..

97-50 = 47

Lastly..

47+5 = 52

Make r the subject of the formula: V=πr²h

Answers

This is called a literal equation, or an equation with multiple variables. You solve it the same as you solve any other equation, but the variables stay there the whole time.

If they want "r" to be the subject, then they want you to solve for r. This means that you need to get the variable r by itself on one side of the equation, but still have the equation be equivalent to it original form.

I'm going to show you, in steps, how to solve this problem:

V=πr²h

Divide both sides by "π²h"
V/π²h=(πr²h)/π²h

V/(π²h)=r

Your answer is r=V/π²h

Five less than p is 13

Answers

Answer: P = 18

Step-by-step explanation:

P - 5 = 13

Add five to both sides

P = 18

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