Answer:
-m²+81
Step-by-step explanation:
Hello There!
9x-m=-9m
9x9=81
mx-m=-m²
9xm=9m
9m-9m=0
we would be left with
-m²+81
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.
According to the given information, we build the equation for the cost. After we build the equation, the equation that relates these measures is:
Cost:
0.3 kilograms of tomatoes, at 3.30 dollars per kilogram.
Thus, the cost starts at:
y kilograms of cucumbers, at x dollars per kilogram.
Considering this, the cost will now be of:
0.2 kilograms of carrots, at z dollars per kilogram:
Now, we have to consider this for the cost, so:
A similar example is given at brainly.com/question/14544759