The speed of wind and plane are 105 kmph and 15 kmph respectively.
<u>Solution:</u>
Given, it takes 6 hours for a plane to travel 720 km with a tail wind and 8 hours to make the return trip with a head wind.
We have to find the air speed of the plane and speed of the wind.
Now, let the speed wind be "a" and speed of aeroplane be "b"
And, we know that, distance = speed x time.
Now at head wind →
So, solve (1) and (2) by addition
2a = 210
a = 105
substitute a value in (1) ⇒ 105 + b = 120
⇒ b = 120 – 105 ⇒ b = 15.
Here, relative speed of plane during tail wind is 120 kmph and during head wind is 90 kmph.
Hence, speed of wind and plane are 105 kmph and 15 kmph respectively.
Answer:
Part A: the dependant variable is how many hours he works mowing lawns.
the independent variable is that she earns $7 per hour.
Part B:(1,7) 1 hour working for $7
(2,14) 2 hours working for $14
(3,21) 3 hours working for $21
Part C: Y=7h (h represents the number of hours she works)
Step-by-step explanation:
I'm not 100% sure about part A I have not done this in a while but here you go
hope this helps
Answer:
4
Step-by-step explanation:
because 32 divided by 8 = 4
2 is 2/3 of 3. So 3 times 2/3 is 3. And 3 is a ratio to 2(cups of solvent). Using that logic we can find 2/3 of the cups of solvent. 2 times 2/3 is 4/3. Thus, he would need 4/3 cups of solvent.