+229 the temperature is 50'F the temperature will decrease by 4'F each hour . let h be the number of hours when will the temperature be below 32'F?
A 50-4h<32
B 50-4h<32
C 50+ 4h<32
D 50 + 4h<32
+37146 h = hours
temp starts at 50
decreases by four each hour - 4 h
< 32
50 - 4h < 32 solve for h.....subtract 50 from both sides of the equation
-4h < -18 divide both sides by -4 (remember when you multiply or divide an inequality by a negative the <> reverses)
h> 4.5 hours
+37146 h = hours
temp starts at 50
decreases by four each hour - 4 h
< 32
50 - 4h < 32 solve for h.....subtract 50 from both sides of the equation
-4h < -18 divide both sides by -4 (remember when you multiply or divide an inequality by a negative the <> reverses)
h> 4.5 hours
