Menu Close

Category: Algebra

Question-39218

Question Number 39218 by behi83417@gmail.com last updated on 03/Jul/18 Answered by MJS last updated on 12/Aug/18 $${x}_{\mathrm{1}} =\mathrm{1};\:{y}_{\mathrm{1}} =\sqrt{\mathrm{2}}\:\left(\mathrm{plain}\:\mathrm{to}\:\mathrm{see}\:\mathrm{but}\:\mathrm{there}\:\mathrm{are}\:\mathrm{3}\right. \\ $$$$\left.\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\mathrm{more}\:\mathrm{real}\:\mathrm{solutions}\right) \\ $$$${y}=−{x}^{\mathrm{2}} +\mathrm{1}+\sqrt{\mathrm{2}} \\…

In-the-a-sport-camp-65-children-know-playing-the-football-70-in-voleyball-75-in-basketball-What-is-least-number-of-children-who-know-playing-all-above-three-sport-games-Answer-10-

Question Number 104717 by 1549442205PVT last updated on 24/Jul/20 $$\mathrm{In}\:\mathrm{the}\:\mathrm{a}\:\:\mathrm{sport}\:\mathrm{camp},\:\mathrm{65\%}\:\mathrm{children}\:\mathrm{know} \\ $$$$\mathrm{playing}\:\mathrm{the}\:\mathrm{football},\mathrm{70\%}−\mathrm{in}\:\mathrm{voleyball},\mathrm{75\%}−\mathrm{in} \\ $$$$\mathrm{basketball}.\mathrm{What}\:\mathrm{is}\:\mathrm{least}\:\mathrm{number}\:\mathrm{of}\:\mathrm{children}\:\mathrm{who} \\ $$$$\mathrm{know}\:\mathrm{playing}\:\mathrm{all}\:\mathrm{above}\:\mathrm{three}\:\mathrm{sport}\:\mathrm{games}? \\ $$$$\left(\mathrm{Answer}\:\mathrm{10\%}\right) \\ $$ Terms of Service Privacy Policy…

Question-104696

Question Number 104696 by nimnim last updated on 23/Jul/20 Answered by Rasheed.Sindhi last updated on 23/Jul/20 $${A}'{s}\:{age}\:{at}\:{present}\:{x}\:{years} \\ $$$${B}'{s}\:{age}\:{at}\:{present}\:{y}\:{years} \\ $$$$\:\:\:\:{x}−\mathrm{7}=\:\mathrm{5}\left({y}−\mathrm{7}\right)^{\mathrm{2}} …….\left({i}\right) \\ $$$$\:\:\:{y}+\mathrm{3}=\frac{\mathrm{2}}{\mathrm{5}}\left({x}+\mathrm{3}\right)………\left({ii}\right) \\…