Let, the speed of Airplane = x
Speed of Wind = y
We know, Speed = Distance / Time
So, x-y = 2100 / 6
x-y = 350
& x+y = 2100/4
x+y = 525
Substitute value of x from equation 1 into 2,
350+y+y = 525
2y = 525-350
y = 175/2
y = 87.5
& x = 350+y = 437.5
In short, Speed of Airplane is 437.5 mph and Wind is 87.5 mph
Hope this helps!
Answer:
2.5625
Step-by-step explanation:
So 6 3/8- 1/2 -3/4= 5.125 5.125 divided 2 = 2.5625
Answer:
B
Step-by-step explanation:
Rotation 180° is accomplished by negating both the x- and y-coordinates. That is, you multiply each of them by -1. You want the opposite of the identity matrix, so matrix B.
The average speed is the ratio between the distance covered, and the time elapsed to cover that distance.
The total distance is the sum of the three distances covered:

Similarly, the total time elapsed is

So, althought you didn't always travelled with the same speed, you globally covered 170km in 1.75 hours. This leads to an average speed of

Answer:
CNBD
Step-by-step explanation:
From the diagram, we can see that:

Then by Alternate Interior Angles:

From vertical angles, we also know that:

This is all we can gather from the given image. Knowing only three pairs of angles cannot prove congruence, as proving congruence requires at least one side.
Congruence cannot be determined.