If "y" is inversely proportional to "x" and "y"=15 when "x"=5, What is the value of "y" when "x"=25?
1 Answer
May 3, 2018
Explanation:
#"the initial statement is "yprop1/x#
#"to convert to an equation multiply by k the constant"#
#"of variation"#
#rArry=kxx1/x=k/x#
#"to find k use the given condition"#
#y=15" when "x=5#
#y=k/xrArrk=yx=15xx5=75#
#"equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=75/x)color(white)(2/2)|)))#
#"when "x=25" then"#
#y=75/25=3#
