The airplane's speed in the direction of its heading is
.. 410 mph +r*cos(θ)
where θ is the angle between the plane's heading and the direction the wind is moving toward.
That is, if the plane is moving "with the wind," its speed is (410 +r) mph.
If the plane is moving "against the wind", its speed is (410 -r) mph.
Answer:
7/12
Step-by-step explanation:
3/4 - 4/3 = 7/12 or 0.583
Answer:
1 3/8 pints
Step-by-step explanation:
(2 3/4 cups) × (1 pint)/(2 cups) = 1 3/8 pints
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Units conversion is conveniently done using a fraction that is equal to 1: its numerator and denominator express the same quantity, but in different units. The units are chosen so that after unwanted units are cancelled, you end up with the desired units.
Answer:
21 hours
Step-by-step explanation:
You want to find x such that B(x) = 31. Fill in the value and solve.
... 31 = 1.33e^(0.15x)
... 31/1.33 = e^(0.15x) . . . . divide by 1.33
... ln(31/1.33) = 0.15x . . . . take the natural log
... ln(31/1.33)/0.15 = x ≈ 20.992 . . . . hours
After 21 hours, the concentration will be 31 M/mL.
Answer: 2 field trips
explanation: one more than three times of seven is two
you subtract one from seven to find the answer because it’s one more, to get six
six divided by 3 is 2 leaving you with your answer
