Answer:
for the second questio it is certainly The last choice D
Step-by-step explanation:
Answer:
The rate of plane in still air is 834 km/hr and the rate of wind is 80 km/hr.
Step-by-step explanation:
The airplane travels 6032 km in 8 hours against the wind.
So, 
........ (1) {Where u is the speed of plane in still air and v is the wind speed}
Again, the airplane travels 7312 km in 8 hours with the wind.
So, 
........ (2)
Now, adding equations (1) and (2) we get,
2u = 1668
⇒ u = 834 km per hour.
So, from equation (1), we get
v = u - 754 = 834 - 754 = 80 km per hour.
Therefore, the rate of the plane in still air is 834 km/hr and the rate of wind is 80 km/hr. (Answer)
Answer:
33 students
Step-by-step explanation:
Fifteen percent of the students in seventh grade at western middle school have perfect attendance. There are 220 students in seventh grade. How many have perfect attendance?
Fifteen percent in decimal from is 0.15.
You would then multiply that by the number of students; 220.
.15 * 220 =
One multiplied, you get 33.
Therefore, 33 students have perfect attendance.
Answer:
8
Step-by-step explanation:
Area is 96, divide that by 4 triangles = Area is 24 per triangle
Area of a triangle = (0.5)(base)(height)
(0.5)(6)(x)=24
3x=24
x=8
Answer: 34 months.
Step-by-step explanation:
10,500 - 2,500 = 8,000.
8,000 divided by 250 = 34. PLEASE GIVE ME BRAINLIEST
