Answer:
the least required speed is 103.88 km/h
Step-by-step explanation:
Data provided in the question:
Total distance = 270 km
Total time to reach = Time between 8 a.m and 11:15 a.m i.e 3.25 hours
Now,
For the distance of 110 km speed was 100 km/h
therefore, the time taken to cover 110 km = 
= 
= 1.1 hour
For another 43 km speed was 42 km/h
therefore, the time taken to cover 43 km =
= 
= 1.0238 hours
Now,
The distance left to be covered = 270 - 110 - 43 = 117 km
Time left = 3.25 h - 1.1 h - 1.0238 h = 1.1262 h
Thus required speed = 
= 103.88 km/h
Hence, the least required speed is 103.88 km/h
The answer is 3 pounds
48=3
Answer: n=15
Step-by-step explanation:
To find the perimeter, you add all of the side lengths together. This would make the equation 28+28+n+n. You already know the perimeter and are trying to find n. Your new equation is 28+28+n+n=86
You would then combine the like terms and get
56+2n=86
Then you would subtract 56 from both sides and get
2n=30
Finally, you want to divide both sides by 2 in order to get n alone. 30/2 is 15. Therefore,
N=15
Answer:
<u>8</u>
Step-by-step explanation:
Now consider an experiment of tossing three coins simultaneously. The possible outcomes will be HHH, TTT, HTT, THT, TTH, THH, HTH, HHT. So the total number of outcomes is 23 = <u>8</u>.
Equation of a line tha passes through thte point (x1,y1) and has a lsope of m is
y-y1=m(x-x1)
given
m=1/2
point is (2,-1)
x1=2
y1=-1
y-(-1)=1/2(x-2)
y+1=1/2(x-2)
if yo want slope intercept
y+1=1/2x-1
y=(1/2)x-2
