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andreev551 [17]
3 years ago
12

PLEASE HELP ME FAST!

Mathematics
1 answer:
poizon [28]3 years ago
3 0
-9! person above was right
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The diameter of a ping pong ball is 4.0cm. find the length in kilometers of a row of 6.02×1023 ping pong balls.
Vikentia [17]
The length is determined by multiplying the number of balls with the diameter. The answer that would come out of this is in units of centimeters.

    L = (6.02 x 10^23 balls)(4 cm/ball)
    L = 2.408 x 10^24 cm

Then, we use the proper conversion factor to convert centimeter to kilometer.

     L = (2.408 x 10^24 cm)(1 m/100 cm)(1 km/1000 m)
       L = (2.408 x 10^24)(10^5)
        

The answer to this item is 2.408 x 10^19 km. 
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3 years ago
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Explain how to write the equations of vertical lines, and why they are written this way
Rom4ik [11]

1. Recall the vertical line equation.

2. Plug in the x that we know.

3. Write down the final equation

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3 0
3 years ago
Sam sells two notebooks for $3.50 each and a pen for $3. He earns a profit of $1. Sam's profit represents what percent of the to
ale4655 [162]
2x 3.50 = $7 notebook sale 1x 3.00 = $3 pen sale Total sale = $10.00 less $1.00 profit To find percentage of profit $1.00/$10.00 = .10 or 10%
3 0
3 years ago
What property is [9 + (-9)] + (10x - 6x) + 3?
Roman55 [17]
So you're looking for the answer? If so, it is -3/4
5 0
2 years ago
By what number should-15/56 be divided to get -5/6<br><br>pls pls pls pls I need your help ​
mr_godi [17]

Answer:

The desired divisor is n = 21

Step-by-step explanation:

Let that number be n.  Then:

-15/56        -5

---------- = ---------

     n            6

Through cross-multiplication we get:

(-15/56)*6 = -5n, which reduces to:

(-15)(7) = -5n, or 3(7) = n

The desired divisor is n = 21

6 0
2 years ago
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