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Molodets [167]
2 years ago
11

I don't really get this the one on the bottom but you use the top to solve

Mathematics
1 answer:
Vera_Pavlovna [14]2 years ago
5 0

The percentages for each acid are:

  • 0% acid ⇒ percentage disolved = 0%
  • 33% acid ⇒ percentage disolved = 1%
  • 66% acid ⇒ percentage disolved = 2%
  • 100% acid ⇒ percentage disolved = 4.2%

<h3>How to get the percentages?</h3>

Here we just need to use the given formula:

percent\ disolved = \frac{initial\ mass - \ final \ mass}{initial \ mass}*100 \%

For the 0% acid, the initial and final mass are the same:

initial mass = final mass = 10.3g

Then the percent dissolved is:

percent\ disolved = \frac{10.3g - 10.3g}{10.3g}*100 \% = 0 \%

For the 33% acid we have:

  • initial mass = 10.1g
  • final mass =  10g

Then:

percent\ disolved = \frac{10.1g - 10g}{10.1g}*100 \% = 1 \%

For the 66% acid:

  • initial mass = 10g
  • final mass =  9.8g

percent\ disolved = \frac{10g - 9.8g}{10g}*100 \% = 2 \%

for the 100% acid:

  • initial mass = 9.9g
  • final mass =  9.5g

percent\ disolved = \frac{9.9g - 9.5g}{9.9g}*100 \% = 4.2 \%

If you want to learn more about percentages:

brainly.com/question/843074

#SPJ1

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3 years ago
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More help is appreciated:))
Lera25 [3.4K]

Step-by-step explanation:

You need to translate all the points to the right 3 and up 6

Therefore, you are going to use this formula:

(x,y) ⇾ (x + 3, y + 6)

This is the same format as the previous problem, if you have noticed.

Using this, plug in each coordinate, starting with  P (5, -1)

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(5, -1) ⇾ ( 8, 5 )

P^{1} = (8, 5)

Now point Q, (0, 8)

(0, 8) ⇾ (0 + 3, 8 + 6)

(0, 8) ⇾ ( 3, 14 )

Q^{1} = (3, 14)

And last but not least, the point R, (7, 5)

(7, 5) ⇾ (7 + 3, 5 + 6)

(7, 5) ⇾ ( 10, 11 )

R^{1} = (10, 11)

Therefore, P^{1} = (8, 5), Q^{1} = (3, 14), R^{1} = (10, 11) is your answer. This is the 4th option or D.

Hope this for you to understand this a bit more! =D

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3 years ago
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