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ad-work [718]
2 years ago
9

What is the simplified version of 6x-3y+8x-5y

Mathematics
1 answer:
WINSTONCH [101]2 years ago
8 0

I believe it is 0.7

Step-by-step explanation:

or it is -0.7

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One brand of vinegar has a pH of 4.5. Another brand has a pH of 5.0. The equation for the pH of a substance is pH = –log[H+], wh
kiruha [24]

Answer:

2.16 * (10^-5).

Step-by-step explanation:

5 = -log H+

5 = log (1 / H+)

1/ H+ = 10^5

H+ = 10^-5

In a similar fashion  the other brand has H+ of 10^-4.5.

So the difference in hydrogen ion concentration =  10^(-4.5) - 10^(-5)

= 2.16 * (10^-5).

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3 years ago
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The answer is <EKF and <HKI
3 0
3 years ago
A copy machine makes 24 copies per minute. how many copies does it make in 5 minutes and 30 seconds
enot [183]
In 1 minute the copy machine copies = 24
That means
In 60 seconds the copy machine copies = 24
First we need to convert 5 minutes and 30 seconds to seconds
Then
5 minutes and 30 seconds = (5 * 60) + 30
                                           = 300 + 30
                                           = 330 seconds
So
In 330 seconds the copy machine will copy = (24/60) * 330
                                                                     = 4 * 33
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So in 5 minutes and 30 seconds the copy machine will copy 132 copies.
6 0
3 years ago
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Evaluate the expression for the given values. 8x+2yz , where x=12 , y = 4, and z = 2 Enter your answer in the box. need this ASA
FromTheMoon [43]
112 is the answer I think
3 0
3 years ago
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20 + (-3.05) + (-9.8)
3241004551 [841]
20+(-3.05)+(-9.8)=20-3.05-9.8=7.15
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3 years ago
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