Answer: I need to see the picture of the work first to tell u
Step-by-step explanation:
Answer:the plane in still air is 904 km/h
the rate of the wind is 104 km/h
Step-by-step explanation:
Let x represent the rate or speed of the plane in still air.
Let y represent the rate or speed of the wind.
Flying against the wind, an airplane travels 4000 kilometers in 5 hours. This means that the total speed of the airplane would be (x - y) km/h
Distance = speed × time
Therefore
4000 = 5(x - y)
4000 = 5x - 5y - - - - - - - - -1
Flying with the wind, the same plane travels 5040 kilometers in 4 hours. This means that the total speed of the airplane would be (x + y) km/h. Therefore,
5040 = 4(x + y)
5040 = 4x + 4y - - - - - - - - - 2
Multiplying equation 1 by 4 and equation 2 by 5, it becomes
16000 = 20x - 20y
20160 = 20x + 20y
Subtracting, it becomes
- 4160 = - 40y
y = - 4160/-40
y = 104
Substituting y = 104 into equation 1, it becomes
4000 = 5x - 5 × 104
4000 = 5x - 520
5x = 4000 + 520
5x = 4520
x = 4520/5 = 904
Answer:
Step-by-step explanation:
Start by writing these five numbers in just one format (improper fractions with denominator 10):
9/5 = 18/10, and
-2.5 = -25/10, and
-1.1 = -11/10, and
-4/5 = -8/10, and, finally
0.8 = 8/10
The smallest of these (the least) is -25/10, and
the largest is 18/10.
Arranged in ascending order, we have:
-25/10, -11/10, -8/10, 8/10, 18/10, or
-2.5, -1.1, -4/5, 0.8, 9/5
44 percent of 25 is 11 to get percentage u would take 44 and divide it by a hundred and u would get .44 and then u would multiply that by 25 and u get 11
Answer:
x = 77 degrees
Step-by-step explanation:
angle x = (76 + 78)/2 = 154/2 = 77 degrees
Use the Chord angle theorems
