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Natalija [7]
3 years ago
15

Casey is completing an experiment that requires 300 mL of potassium chloride (KCl) at a concentration of 0.2 M. But Casey's lab

only stores potassium chloride at concentrations of 0.1 M and 0.5 M. How much 0.1 M KCl will Casey have to mix with 0.5 M KCl to make 300 mL of 0.2 M KCl?
Mathematics
1 answer:
gulaghasi [49]3 years ago
3 0
What you first need to do is make an equation. Then plug that equation into photomath and you get your answer


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Given the function ƒ(x) = 3x + 5, find ƒ(4) and x such that ƒ(x) = 38.
MissTica

Answer: A.17;11

f(4)= 3(4) + 5

=12 + 5

=17

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=>3x= 38-5

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=>x = 33÷3

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So, A.17;11

5 0
3 years ago
Choose the fraction that has not been reduced to simplest form.
Gennadij [26K]

We are required to choose the fraction that has not been reduced to simplest form

The fraction that has not been reduced to simplest form is 19/38 and 10/18

1. 21 / 34 is in its simplest form

factors of 21 = 1, 7 and 21

factors of 34 = 1, 2, 17 and 34

No common factor of 21 and 34 except 1

2. 15/16

factors of 15 = 1, 3, 5, 15

Factors of 16 = 1, 2, 4, 8 and 16

No common factor of 15 and 16 except 1

3. 19/38

factors of 19 = 1, 19

factors of 38 = 1, 2, 19 and 38

divide both numerator and denominator by 19

So,

19 / 38 = 1/2

4. 10/18

factors of 10 = 1, 2, 5 and 10

factors of 18 = 1, 2, 3, 6, 9 and 18

So,

10/18

divide both numerator and denominator by 2

= 5/9

Read more:

brainly.com/question/18069

7 0
3 years ago
Express each improper fraction as a decimal <br><br> 1.22/5
sesenic [268]

you would dived the numerator by the denominator 1.22 divided by  =0.244

7 0
3 years ago
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