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aalyn [17]
3 years ago
12

The ratio of nitrogen to potassium in a sample of soil is 9;12. The sample has 48 units of nitrogen . How much potassium does th

e sample have.
Mathematics
1 answer:
yawa3891 [41]3 years ago
5 0
9/12=48/x
576=9x
x=64
64 units of potassium
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Divide through everything by <em>b</em> :

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\dfrac{a+c}{b+d} < \dfrac{\dfrac cd+\dfrac cb}{1 + \dfrac db}

Multiply through everything on the right side by <em>b/d</em> to get

\dfrac{a+c}{b+d} < \dfrac{\dfrac{bc}{d^2}+\dfrac cd}{\dfrac bd+1} = \dfrac{\dfrac cd\left(\dfrac bd+1\right)}{\dfrac bd+1} = \dfrac cd

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