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Simba-had-57-denomination-notes-which-he-deposited-in-his-account-He-had-six-times-as-many-two-hundred-shilling-notes-as-one-thousand-shilling-notes-and-twice-as-many-one-hundred-shilling-notes-as-

Question Number 66765 by John Kaloki Musau last updated on 19/Aug/19 $${Simba}\:{had}\:\mathrm{57}\:{denomination}\:{notes} \\ $$$${which}\:{he}\:{deposited}\:{in}\:{his}\:{account}. \\ $$$${He}\:{had}\:{six}\:{times}\:{as}\:{many}\:{two}-{hundred} \\ $$$${shilling}\:{notes}\:{as}\:{one}-{thousand}\: \\ $$$${shilling}\:{notes}\:{and}\:{twice}\:{as}\:{many}\: \\ $$$${one}-{hundred}\:{shilling}\:{notes}\:{as}\:{two}- \\ $$$${hundred}\:{shilling}\:{notes}.\:{The}\:{rest}\:{were} \\…

A-point-T-divides-a-line-AB-internally-in-the-ratio-5-2-Given-that-A-is-4-10-and-B-is-10-3-find-the-coordinates-of-T-

Question Number 66746 by John Kaloki Musau last updated on 20/Aug/19 $${A}\:{point}\:{T}\:\:{divides}\:{a}\:{line}\:{AB}\:{internally}\:{in}\:{the}\:{ratio}\:\mathrm{5}:\mathrm{2}.\:{Given}\:{that}\:{A}\:{is}\:\left(-\mathrm{4},\mathrm{10}\right)\:{and}\:{B}\:{is}\:\left(\mathrm{10},\mathrm{3}\right),\:{find}\:{the}\:{coordinates}\:{of}\:{T}. \\ $$ Answered by mr W last updated on 19/Aug/19 $${x}_{{T}} ={x}_{{A}} +\frac{\mathrm{5}}{\mathrm{7}}\left({x}_{{B}}…

wich-statment-is-true-1-if-x-Q-and-y-Z-then-xy-Q-Z-2-if-x-Q-Z-and-y-Z-then-xy-Q-Z-3-if-x-R-then-y-R-such-that-xy-5-4-if-x-N-0-then-y-Q-such-that-y-x-2-x-x-1-Q-

Question Number 1208 by 123456 last updated on 14/Jul/15 $$\mathrm{wich}\:\mathrm{statment}\:\mathrm{is}\:\mathrm{true} \\ $$$$\mathrm{1}.\mathrm{if}\:{x}\in\mathbb{Q}\:\mathrm{and}\:{y}\in\mathbb{Z},\:\mathrm{then}\:{xy}\in\mathbb{Q}/\mathbb{Z} \\ $$$$\mathrm{2}.\mathrm{if}\:{x}\in\mathbb{Q}/\mathbb{Z}\:\mathrm{and}\:{y}\in\mathbb{Z},\:\mathrm{then}\:{xy}\in\mathbb{Q}/\mathbb{Z} \\ $$$$\mathrm{3}.\mathrm{if}\:{x}\in\mathbb{R},\:\mathrm{then}\:\exists{y}\in\mathbb{R}\:\mathrm{such}\:\mathrm{that}\:{xy}=\mathrm{5} \\ $$$$\mathrm{4}.\mathrm{if}\:{x}\in\mathbb{N}/\left\{\mathrm{0}\right\},\:\mathrm{then}\:\exists{y}\in\mathbb{Q}\:\mathrm{such}\:\mathrm{that}\:\sqrt{\frac{{y}\left({x}+\mathrm{2}\right)}{{x}\left({x}+\mathrm{1}\right)}}\in\mathbb{Q} \\ $$ Answered by prakash jain last…

lets-f-R-Z-suppose-that-x-R-and-y-R-with-x-y-such-f-x-f-y-can-f-x-be-conrinuous-

Question Number 1196 by 123456 last updated on 13/Jul/15 $$\mathrm{lets}\:{f}:\mathbb{R}\rightarrow\mathbb{Z},\:\mathrm{suppose}\:\mathrm{that}\:\exists{x}\in\mathbb{R}\:\mathrm{and} \\ $$$$\exists{y}\in\mathbb{R}\:\mathrm{with}\:{x}\neq{y}\:\mathrm{such}\:{f}\left({x}\right)\neq{f}\left({y}\right) \\ $$$$\mathrm{can}\:{f}\left({x}\right)\:\mathrm{be}\:\mathrm{conrinuous}? \\ $$ Answered by prakash jain last updated on 14/Jul/15 $${f}\left({x}\right)={a}\in\mathbb{Z}…

lets-f-R-R-and-g-Z-R-such-that-f-x-g-x-x-Z-given-a-Z-then-proof-or-give-a-counter-example-that-lim-x-a-f-x-g-a-

Question Number 1192 by 123456 last updated on 13/Jul/15 $$\mathrm{lets}\:{f}:\mathbb{R}\rightarrow\mathbb{R}\:\mathrm{and}\:{g}:\mathbb{Z}\rightarrow\mathbb{R}\:\mathrm{such}\:\mathrm{that} \\ $$$${f}\left({x}\right)={g}\left({x}\right),{x}\in\mathbb{Z} \\ $$$$\mathrm{given}\:{a}\in\mathbb{Z},\:\mathrm{then}\:\mathrm{proof}\:\mathrm{or}\:\mathrm{give}\:\mathrm{a}\:\mathrm{counter}\:\mathrm{example}\:\mathrm{that} \\ $$$$\underset{{x}\rightarrow{a}} {\mathrm{lim}}{f}\left({x}\right)={g}\left({a}\right) \\ $$ Commented by prakash jain last updated…