For what temps will mercury be a solid?

Question

By using this inequality to find temps in degrees Fahrenheit for which mercury is a solid. F represents degrees Fahrenheit

5(f-32) over 9 <-38

Answer 1

-36.4 F and less...

[5/9](F-32) &lt; -38

F-32 &lt; (9/5)(-38)

F-32 &lt; -68.4

F &lt; -36.4

*u treat inequalities as equations; except when u manipulate by multiplying or dividing by a negative, the direction of the inequality sign changes :)