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2 years ago

Need help pls simplify NO LINKS!!

Mathematics

2 answers:

Leona [35]2 years ago

5 0

Use photomath it’s more easy

creativ13 [48]2 years ago

5 0

Answer:

$\frac{2\sqrt{5} }{3}$

Step-by-step explanation:

Given

$\sqrt{2\frac{2}{9} }$

= $\sqrt{\frac{20}{9} }$

= $\frac{\sqrt{20} }{\sqrt{9} }$

= $\frac{\sqrt{4(5)} }{3}$

= $\frac{2\sqrt{5} }{3}$

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Answer:

We must add 400 ml of water.

Step-by-step explanation:

We can use the following equation:

$C_{i}V_{i}=C_{f}V_{f}$

Where:

C(i) is the initial concentration of the solution (80%)
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I hope it helps you!

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