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:
The correct options for the solution values are:
Step-by-step explanation:
Given the expression
Subtract 25 from both sides
Simplify
Add 25 or 5² to both sides
as
so the expression becomes
solve
Subtract 5 from both sides
solve
Subtract 5 from both sides
Therefore, the solution to the equation
Hence, the correct options for the solution values are:
Written (word) form: Eleven million and seven hundred sixty thousand and eight hundred and twenty-five.
Expanded from: 10,000,000+1,000,000+700,000+60,000+800+20+5
Answer:
A.) 579000
B.) 144750
Step-by-step explanation:
13 houses times 117,00 (The price to build each one) eguals 1521000
2100000 minus 1521000 equals 579000 of profit
4 people so you divide the profit by 4 to get 144750
