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stepladder [879]
2 years ago
5

How many liters of water should be added to 18 liters of a 14% bleach solution so that the resulting solution contains only 10%

bleach?
Mathematics
2 answers:
gladu [14]2 years ago
7 0

Answer:

0.72 liters

Step-by-step explanation:

First, to solve this problem, since the 18 liters contain just 14% bleach, we will find the amount of bleach solution;

14% of 18 liters  = \frac{14}{100}    ×   18   =  \frac{252}{100}  = 2.52 liters

This means we only have  2.52 liters of bleach

To get the numbers of liters that must be added to 2.52 liters so that it becomes 10% bleach, we need to find 10% of the solution

10% of 18 liters = \frac{10}{100}  × 18 = \frac{180}{100}   = 1.8 liters

SO, we will just subtract the 10% from the 14% solution

That is;

2.52 liters -  1.8 liters  = 0.72 liters

Therefore 0.72 liters of water must be added to 18 liters of a  14% bleach solution so that the resulting solution is 10% bleach.

HACTEHA [7]2 years ago
4 0
<h2>Answer:</h2>

18 liter = 14% Bleach

............ = 10% Bleach

......=

\frac{18 \times 10}{14}

\frac{180}{14}

= 12.9\%

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