Answer:
6 PM
Step-by-step explanation:
The truck has a 2 hour head start. It is moving at 45 km/h, so it is 90 km ahead.
If t is the time after 8 AM, then the distance between the truck and the station is:
d = 90 + 45t
The distance between the van and the station is:
d = 54t
When the distances are equal:
54t = 90 + 45t
9t = 90
t = 10
It takes 10 hours after 8 AM for the van to catch up with the truck. So the time would be 6 PM.
Answer:
negative
Step-by-step explanation:
We can solve this by looking at pairs that equal 60.
6 and 10 get to 60 when multiplied. Let's see if it fits in as a perimeter.
12+20=32
So the width and length of the room is 6 meters and 10 meters.
Answer:
perpendicular = 10.24 cm
Step-by-step explanation:
by pythagorus theorem,
( where, h = hypotenuse, b = base,
p = perpendicular )
so,
=》
=》
=》
=》
perpendicular = 10.24 ( root 105 )
Answer:
x y-values
1 175
2 175
3 225
4 275
The domain is 1,2,3,4 it would be from 1 to 4 if the electrician bills for partial hours, or greater than 4, but this is not in the chart.
The range is 175,225,275. Again there could be other values in between or greater than 275, but it is not in the chart.
Step-by-step explanation: It is a function because for each x-value there is only one y-value, even if the y-value is the same for two of the x-valus
