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)
3 but in most cases it is 2 real roots and one root has a multiplicity of 2
Answer:
The answer is- Rs. 28,140
Step-by-step explanation:
The cost of 1 almirah is Rs. 2345
Therefore the cost of 12 such almirahs will be
= 2345 × 12
= Rs. 28,140
<h2>
Please mark me as brainliest</h2>
Answer:
60 70 80m9
Step-by-step explanation:
Answer:

Step-by-step explanation:
Hello, first of all, we will check if we can factorise the polynomials.




Now, let's compute the product.

So the correct answer is the first one.
Thank you.