The speed of wind and speed of plane in still air are 23 and 135
km/h respectively.
<u>Step-by-step explanation:</u>
Let the speed of wind and speed of plane in still air are w and p km/h respectively.
The effective speed on onward journey was
................(1)
The effective speed on return journey was
..............(2)
Adding equation (1) and equation (2) we get,
⇒ 
⇒ 
⇒ 
Putting value of in we get:
⇒
⇒ 
⇒ 
Therefore ,The speed of wind and speed of plane in still air are 23 and 135
km/h respectively.
Answer:
True
Step-by Step Explanation:
Since the exchange rate of euro to USD right now is 1:1.11, therefore he spent 150x1.11=166.5 USD. Therefore, he has 250-166.5=83.5 USD left(assuming the exchange rate is the same, 1.17).
The rectangle has the dimensions 4 x 3.
The measure of 6 ft is the triangle plus the square's length.
The rectangle's length is 3.
To find the triangle's width, solve this: 3 + x = 6
Subtract 3 from each side to get x = 3.
The dimensions of the triangle is 3 x 4.
The area will be half of 3 x 4, so 12 / 2 or 6.
The rectangle's area is 12 because its dimensions are 3 x 4.
12 + 6 = 18 feet total.
Hope this helps!
