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umka2103 [35]
3 years ago
9

Why is it useful to know the definition of rational expression? explain through an example of your own?

Social Studies
1 answer:
Natasha_Volkova [10]3 years ago
3 0
<span>It is important to know rational expression because we come across rational expressions most of the time in the real world, often without even realizing it.
</span><span>
</span><span>Example: you may want to know how much of a 25% chemical solution need to be added to 1L of water to produce a 10% solution.
</span><span>
</span><span>Ans: Equation: </span>
<span /><span>solution + water = solution
</span><span>0.25x + 0*1 L = 0.10(x+1)
</span>
<span /><span>Multiply the above equation by 100 to get:
25x + 0 = 10x + 10
15x = 10
x = 2/3 Liter (amt. of 25% solution in the mixture)</span>
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