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trapecia [35]
3 years ago
8

a stack of sheets of tissue paper is about 2.5 inches high. each sheet is about 0.01 inch thick. how many sheets are in the stac

k?show your work.
Mathematics
1 answer:
damaskus [11]3 years ago
4 0

Answer:

Step-by-step explanation:

2.5 / 0.01 = 250 sheets in the stack....just a little division problem....thank god for calculators...lol

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X+2
adell [148]

Answer:

D

Step-by-step explanation:

f(x)=0

x+2=0

x=-2

4 0
2 years ago
\dfrac12(10x + 20y +10z) = 2 1 ​ (10x+20y+10z)=start fraction, 1, divided by, 2, end fraction, left parenthesis, 10, x, plus, 20
iragen [17]

Answer:

5x + 10y + 5z

Step-by-step explanation:

Given the expression

\frac{1}{2}(10x+20y+10z)\\

Expand the parenthesis using the distributive law;

\frac{1}{2}(10x)+ \frac{1}{2}(20y)+\frac{1}{2}(10z)\\= \frac{10x}{2} + \frac{20y}{2} + \frac{10z}{2}\\= 5x + 10y + 5z

Hence the required solution is 5x + 10y + 5z

6 0
3 years ago
I need help with the whole homework and yeah plz answer and who ever answers gets a brainlist answer
pashok25 [27]

Answer:

1.) 357

2.) 221.5

3.) 72

4.) 1653

5.) 265

6.) 296

7.) 43.16

8.) 136

9.) 2486.33

10.)a. 48 b. 3

11.) 79

explantion: It breaks down a division problem into a series of easier steps. As in all division problems, one number, called the dividend, is divided by another, called the divisor, producing a result called the quotient.

https://www.theschoolrun.com/what-is-long-division

4 0
3 years ago
An investor has an account with stock from two different companies. Last year, her stock in Company A was worth $2690 and her st
Mrac [35]

Answer:

<h2> 14.7 %</h2>

Step-by-step explanation:

let us total the amount in her portfolio

Company A was worth $2690

Company B was worth $2980.

Total = $5670

when The stock in Company A decreases by 20%  she will have

$2690 *0.8=  $2152

Company A will worth $2152

when The stock in Company B decreases by 10%  she will have

$2980 *0.9=  $2682

Company A will worth  $2682

In all after the decline in are portfolio is $2152+$2682= $4834

the difference for the original amount in her investment is = $5670-$4834

= $836

The total percentage decrease in the investor's stock account

= (836/5670)*100= 0.147*100= 14.7 %

3 0
3 years ago
the credit remaining on a phone card in dollars is a linear function of the total calling time made with the card in minutes. Th
Advocard [28]

Answer:

he credit remaining on a phone card (in dollars) is a linear function of the

total calling time made with the card (in minutes), as shown in the figure below.

The remaining credit after 45 minutes of calls is $22.80 , and the remaining

credit after 64 minutes of calls is $19.76.

What is the remaining credit after 73 minutes of calls?

;

Not sure what figure you are referring to, write an equation from the given values:

Assign the values as follows

x1 = 45; y1 = 22.80

x2 = 64; y2 = 19.76

:

Find the slope (m) using the formula: m = %28y2-y1%29%2F%28x2-x1%29

m = %2819.76-22.80%29%2F%2864-45%29 = %28-3.04%29%2F%2819%29

m = -.16

:

Write the equation using the point/slope formula: y - y1 = m(x - x1)

y - 22.80 = -.16(x - 45)

y - 22.80 = -.16x + 7.2

y = -.16x + 7.2 + 22.80

y = -.16x + 30

;

Use this equation to find the credit (y) when minutes (x) = 73

y = -.16(73) + 30

y = -11.68 + 30

y = $18.32; credit after 73 minute of calls

:

:

That you can also see the original value of the phone card: x=0, y = $30

;

:

Did this help you understand what's going on here? Any questions

Step-by-step explanation:

8 0
2 years ago
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