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Question-79079




Question Number 79079 by ketto255 last updated on 22/Jan/20
Answered by mr W last updated on 22/Jan/20
x≥1.5  x≥3y  3x≤y+6    ⇒9x≤3y+18≤x+18  ⇒8x≤18  ⇒x≤(9/4)=2.25  ⇒x=2  y≥3x−6=0  y≤(x/3)=(2/3)  ⇒y=0    the two numbers are 2 and 0.
$${x}\geqslant\mathrm{1}.\mathrm{5} \\ $$$${x}\geqslant\mathrm{3}{y} \\ $$$$\mathrm{3}{x}\leqslant{y}+\mathrm{6} \\ $$$$ \\ $$$$\Rightarrow\mathrm{9}{x}\leqslant\mathrm{3}{y}+\mathrm{18}\leqslant{x}+\mathrm{18} \\ $$$$\Rightarrow\mathrm{8}{x}\leqslant\mathrm{18} \\ $$$$\Rightarrow{x}\leqslant\frac{\mathrm{9}}{\mathrm{4}}=\mathrm{2}.\mathrm{25} \\ $$$$\Rightarrow{x}=\mathrm{2} \\ $$$${y}\geqslant\mathrm{3}{x}−\mathrm{6}=\mathrm{0} \\ $$$${y}\leqslant\frac{{x}}{\mathrm{3}}=\frac{\mathrm{2}}{\mathrm{3}} \\ $$$$\Rightarrow{y}=\mathrm{0} \\ $$$$ \\ $$$${the}\:{two}\:{numbers}\:{are}\:\mathrm{2}\:{and}\:\mathrm{0}. \\ $$

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