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zalisa [80]
3 years ago
8

Plzzz help I don’t understandddddd

Mathematics
1 answer:
Archy [21]3 years ago
7 0

Answer:

k = -10.5

Step-by-step explanation:

k + 7.5 = -13

Subtract 7.5 from both sides

k + 7.5 - 7.5 = -13 - 7.5

            k = -20.5

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Sholpan [36]

Answer:

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4 years ago
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ladessa [460]

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Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
Help me with this question plz?
wel
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8 0
4 years ago
Ignore the highlighted ones please thxs
denis23 [38]
I believe it’s D. 2/3
5 0
3 years ago
Read 2 more answers
A water molecule is made up of 3 atoms. One third of the atoms are oxygen and the remaining atoms are hydrogen. If there are 114
Mashcka [7]

Answer:

228 hydrogen atoms

Step-by-step explanation:

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3 * 114 = 342 (1 oxygen and 2 hydrogen atoms in 1 water molecule)

Out of these, 2/3rd would be hydrogen atoms, so:

\frac{2}{3}*342=228

There would be 228 hydrogen atoms

7 0
3 years ago
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