Question

A snow storm left 1.25 feet of snow on the ground overnight. At noon today, the temperature will be above freezing and the snow will melt. If the melting snow is modeled by the equation y = -1 3 x + 1.25, how long will it take for the snow to melt away?

Answer 1

y = -13x + 1.25
0 = -13x + 1.25
-1.25 = -13x
3.75 = x

then,

3.75 hours to 3 hours 45 minutes