If y varies inversely as x and y=3 when x=5 how do you find y when x=2.5?
1 Answer
May 25, 2017
Explanation:
#yprop1/x" is the initial statement"#
#"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=3" when " x=5#
#y=k/xrArrk=xy=5xx3=15#
#"the equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=15/x)color(white)(2/2)|)))#
#"when "x=2.5toy=15/2.5=6#
