Use Mathematical Models
-As the Relative Humidity Increases, the Temperature $\mathrm { T } = 0.113 \mathrm { x } + 77.98$

Use Mathematical Models
-As the relative humidity increases, the temperature seems higher than it is. The formula $\mathrm { T } = 0.113 \mathrm { x } + 77.98$ approximates the apparent temperature for an actual temperature of $85 ^ { \circ } \mathrm { F }$ , where $x$ is the relative humidity. What is the apparent temperature (to the nearest degree) for a relative humidity of $40 \%$ ?

A) $83 ^ { \circ } \mathrm { F }$
B) $352 ^ { \circ } \mathrm { F }$
C) $118 ^ { \circ } \mathrm { F }$
D) $78 ^ { \circ } \mathrm { F }$