Speed = Distance / Time
Distance = Speed*Time
For this problem, we should bear in mind that current speed has an impact on the boat speed...
for upstream, the boat goes against the current, and so its speed is
U = V - C
where V is the speed of the boat
C is the current speed
for downstream, it will be:
D = V + C
Convert the problem into mathematical equations:
4D + 3U = 116
3D + 4U = 108
4(V+C) + 3(V-C) = 116
4V + 4C + 3V -3C =116
7V + C = 116
3(V+C) + 4(V-C) = 108
3V + 3C + 4V - 4C = 108
7V - C = 108
Solving the equations:
7V + C = 116
7V - C = 108
14V = 224
V = 16km/hr —-> speed of boat
to get C:
7(16) + C = 116
C = 4km/hr
Answer:
Left box: Outlier in this data set is (57,132)
Right box: because the finish time looks faster than expected for the age.
Step-by-step explanation:
As per the given table shows the 
and 
of 
runners.
It is clear that people of age around 
are finishing at around 
and person with older age takes longer to finish.
One person of age 
finishes in 
, that looks as expected.
Another person of same age 
finishes it too fast which is unexpected.
Therefore 
is an outlier, because it looks a faster finish as per expected.
Answer:
1.Solve for y in 2x+y=-3
y=-3-2x
2. Substitute y= -3 - 2x into 4x-2y=10
8x+6=10
3 Solve for x in 8x+6=10
x=1/2
4. Substitute x=1/2 into y = - 3 - 2x
y= -4
5. So you get...,
x=1/2
y=−4
Step-by-step explanation:
you're welcome :)
Answer:
3,0
Step-by-step explanation:
hopefully this helps you
pls mark brainlest if it is correct
