I think they are congruent because two of their lines are the same and the both have a 90 degree angle. I think they are congruent from the SAS postulate.
Answer:
c = 
Step-by-step explanation:
Given
15 = - 3(2c + d) ( divide both sides by - 3 )
- 5 = 2c + d ( subtract d from both sides )
- 5 - d = 2c ( isolate c by dividing both sides by 2 )
= c
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:
sure
Step-by-step explanation:
Answer:x
Step-by-step explanation:
