If x and y varies inversely as each other and x= 8 when y=10 find y wh

1.	If x and y varies inversely as each other and x= 8 when y=10 find y when x =5
Answer» rong>SOLUTION GIVEN x and y varies inversely as each other and x = 8 when y=10 TO DETERMINE The value of y when x =5 EVALUATION Here it is given that x and y varies inversely as each other $\displaystyle \sf{x \propto \: \frac{<klux>1</klux>}{y} }$ $\displaystyle \sf{ \implies \: x = \: \frac{k}{y} }$ $\displaystyle \sf{ \implies \: xy = k } \: \: \: \: - - - (1)$ Where k is a non zero real number Now x = 8 when y = 10 We get from equation 1 $\displaystyle \sf{ \implies \: (8 \times 10) = k }$ $\displaystyle \sf{ \implies \: k = 80 }$ Equation 1 gives $\displaystyle \sf{ \implies \: xy = 80}$ Now for x = 5 we have $\displaystyle \sf{ \implies \: 5y = 80}$ $\displaystyle \sf{ \implies \: y = 16}$ FINAL ANSWER Hence the required value of y = 16 ━━━━━━━━━━━━━━━━ Learn more from BRAINLY :- 1. if x varies directly as y the complete the FOLLOWING table brainly.in/question/12901438 2. 24 litres of oil cost Rs.1200.How much will 18 litres of oil cost? please tell the TYPE of variation wheather it is dire... brainly.in/question/32633853