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umka2103 [35]
3 years ago
13

A book 500 pages (500 sheets of paper) long is 2.25 inches thick. If each cover is 0.125 inches thick, how thick is each sheet o

f paper?
Mathematics
1 answer:
luda_lava [24]3 years ago
6 0
Subtract the thickness of the covers from the total thickness of the 500-pages book. Since each cover is 0.125 inches thick, double this value and subtract from 2.25 inches. This results to 2 inches. To determine the thickness of each of the pages, divide 2 inches by 500 pages. Therefore, the thickness of a single page is 4x10^-3 inch. 
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How can you get 3/3 -1/6?
cluponka [151]

9514 1404 393

Answer:

  5/6

Step-by-step explanation:

Addition or subtraction of fractions requires a common denominator. The value 3/3 can be multiplied by 2/2 to give 6/6, which has the same denominator as the other fraction.

  \dfrac{3}{3}-\dfrac{1}{6}=\dfrac{3\cdot2}{3\cdot2}-\dfrac{1}{6}\\\\=\dfrac{6}{6}-\dfrac{1}{6}=\dfrac{6-1}{6}=\boxed{\dfrac{5}{6}}

5 0
3 years ago
What Numbers Go Into 515 ? 
Pavel [41]
5 will go into 515, 103 times.
3 0
3 years ago
Answer expression 1:<br><br> 6 x 7 - 3^2 x 9 + 4^3
skad [1K]

In order to get the answer to this question you will have to use PEMDAS and solve.

6\times7-3^2\times9+4^3

Using PEMDAS:

3^2=3\times3=9

4^3=4\times4\times4=64

6\times7-9\times9+64

6\times7=42

9\times9=81

42-81+64

81+64=145

42-145

42-145=-103

=-103

Therefore your answer is "-103."

Hope this helps.

5 0
3 years ago
Read 2 more answers
Raul is a saver. He sets aside $100 per month during his career of 40 years to prepare for retirement. He does not like the idea
Svet_ta [14]

The total balance in Raul's account after 40 years when he retires is $65,714.90.

<h3>What is the total balance?</h3>

The formula that can be used to determine the balance of the accout is: monthly amount saved x annuity factor.

Annuity factor = {[(1+r)^n] - 1} / r

Where:

  • r = interest rate = 1.5/12
  • n = number of periods = 12 x 40 = 480

$100 x [(1.00125^480) - 1 ] / 0.00125 = $65,714.90

Here is the complete question:

Raul is a saver. He sets aside $100 per month during his career of 40 years to prepare for retirement. He does not like the idea of investing because he prefers to minimize his risk as much as possible, so he puts his money in a savings account which earns 1.5% interest per year. What is the balance in the account after 40 years?

To learn more about annuites, please check: brainly.com/question/24108530

6 0
2 years ago
A computer is worth $4000 when it is new. After each year it is worth half what it was the previous year. What will its worth be
aleksandr82 [10.1K]

Answer: $250

Step-by-step explanation:

The computer reduces by half of its value every year. It is originally valued at $4,000 so the value in 4 years can be calculated by the formula:

= 4,000 * 0.5 ^ number of years

= 4,000 * 0.5⁴

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Another method is to reduce by half every year:

First year = 4,000 / 2 = $2,000

Second year = 2,000 / 2 = $1,000

Third year = 1,000 / 2 = $500

Fourth year = 500 / 2 = $250

8 0
2 years ago
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