We start off with 50 as our room temperature.
Then we subtract off 4h to indicate the temperature drops 4 degrees per hour
You can think of it like this
1 hour = drop by 4 degrees
h hours = drop by 4h degrees (multiply both sides by h)
So the expression 50-4h represents the temperature after h hours. We want this to be below 32, so 50-4h < 32 is the inequality we're after
Solving for h leads to
50-4h < 32
-4h < 32-50 ... subtract 50 from both sides
-4h < -18
h > -18/(-4) ... divide both sides by -4; note the inequality sign flips
h > 4.5
If you go beyond 4.5 hours, then the temperature will be below 32 degrees
notes:
- 4.5 hours = 4 hours, 30 minutes = 270 minutes
- the inequality sign flips whenever you divide both sides by a negative number
Convert 7500 Millimeters to Decimeters (mm to dm) with our conversion calculator and conversion tables. To convert 7500 mm to dm use direct conversion formula below.
7500 mm = 75 dm.
You also can convert 7500 Millimeters to other Length (popular) units.
so it will be A 75DECIMETERS
The correct answer is B: Humid air has higher pressure because of the heaviness of water. Hope this helps!!
Answer: 21.35
Step-by-step explanation: 6.12 + 5.29 + 6.02 + 3.92 = 21.35
The equation you use would be 3x+10 = 3x-28
they aren’t linear pairs so it cannot equal 180
