If y varies inversely as x and y=5 when x=3 how do you find x when y is 15?
1 Answer
Sep 8, 2017
Explanation:
#"the initial statement is "yprop1/x#
#"to convert to an equation multiply by k the constant of"#
#"variation"#
#rArry=k/x#
#"to find k use the given condition"#
#y=5" when "x=3#
#y=k/xrArrk=xy=3xx5=15#
#"equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=15/x)color(white)(2/2)|)))#
#"when "y=15#
#x=15/y=15/15=1#
