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nataly862011 [7]
3 years ago
15

Solve for x. 2x+3=13

Mathematics
2 answers:
elena-14-01-66 [18.8K]3 years ago
8 0

Answer:

x=5

Step-by-step explanation:

2x+3=13

first subtract 3 from both sides

2x=10

divide 2 from both sides to isolate x

x=5

svet-max [94.6K]3 years ago
3 0

Answer:5+13=15

Step-by-step explanation:

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You need 450 mL of a 65% alcohol solution. On hand, you have a 10% alcohol mixture. How much of the 10% alcohol mixture and pure
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You will need 292.5 mL of the 10% solution and 2925 mL of pure alcohol.

<h3>What is Algebra?</h3>

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

You require 450 mL of a 65% alcohol solution.

On hand, you have a 10% alcohol mixture.

Then the amount of the 10% alcohol mixture and pure alcohol that you need to obtain the desired solution will be

Let x be the amount of the 10% of alcohol is needed.

Then the equation will be

⇒ 450 · 0.65

⇒ 292.5 mL pure alcohol

Then the alcohol mixture will be

0.1x = 292.5

    x = 2925 mL of alcohol mixture

You will need 292.5 mL of the 10% solution and 2925 mL of pure alcohol.

More about the Algebra link is given below.

brainly.com/question/953809

#SPJ1

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