Category: Arithmetic

Question Number 209860 by lmcp1203 last updated on 23/Jul/24 $$$$$$\mathrm{Magnitude}\mathrm{A}\mathrm{varies}\mathrm{proportionally}\mathrm{with}(\mathrm{B}\mathrm{squared}+4)\mathrm{and}\mathrm{magnitude}\mathrm{B}\mathrm{varies}\mathrm{proportionally}\mathrm{with}$$$$\left(t\mathrm{he}\mathrm{root}\mathrm{of}\mathrm{C}\right)-5.\mathrm{Also}\mathrm{when}\mathrm{A}\mathrm{is}16,\mathrm{B}\mathrm{is}12\mathrm{and}\mathrm{C}\mathrm{takes}\mathrm{the}\mathrm{value}81.\mathrm{Calculate}\mathrm{the}\mathrm{value}\mathrm{that}\mathrm{A}\mathrm{takes}$$$$\mathrm{wh}e\mathrm{n}\mathrm{C}\mathrm{is}49.helpme.please.thanks$$ Answered by mr W last updated on…

Question Number 209598 by peter frank last updated on 16/Jul/24 Answered by Frix last updated on 16/Jul/24 $$a:b=3:5$$$$b:c=2:4=5:10$$$$a:b:c=3:5:10$$ Answered…

Question Number 209602 by peter frank last updated on 16/Jul/24 Answered by som(math1967) last updated on 16/Jul/24 $$letnumber=x$$$$\frac{120x}{100}-\frac{85x}{100}=14$$$$\frac{35x}{100}=14$$$$\Rightarrow{x}=\frac{\mathrm{14}×\mathrm{100}}{\mathrm{35}}=\mathrm{40} \…

Question Number 209453 by peter frank last updated on 10/Jul/24 Commented by peter frank last updated on 10/Jul/24 $$\mathrm{help}\mathrm{B}$$ Answered by mr W…

Question Number 209342 by essaad last updated on 07/Jul/24 Answered by Berbere last updated on 07/Jul/24 $$U_{n+1}=f\left(U_n\right)$$$$x\stackrel{f}{\to }\frac{x}{2}+\frac{x^2}{4};fincrease$$$${f}\left(\left[\mathrm{0},\mathrm{1}\right]\right)=\left[\mathrm{0},\frac{\mathrm{3}}{\mathrm{4}}\right]\subset\left[\mathrm{0},\mathrm{1}\right]…