Option C
The equation used to solve the problem is
<em><u>Solution:</u></em>
Given that, A plane traveled at a constant rate of 500 kmph
To find: time taken to travel 1700 km
Also given that,
<em>The distance formula states that distance (d) is equal to the product of rate (r) and time (t)</em>
From given information,
rate = r = 500 kmph
distance = d = 1700 km
time taken = t = ?
<em><u>Substituting the values in above formula we get,</u></em>
Thus the equation used to solve the problem is
Thus option C is correct
At the start, the tank contains
(0.02 g/L) * (1000 L) = 20 g
of chlorine. Let <em>c</em> (<em>t</em> ) denote the amount of chlorine (in grams) in the tank at time <em>t </em>.
Pure water is pumped into the tank, so no chlorine is flowing into it, but is flowing out at a rate of
(<em>c</em> (<em>t</em> )/(1000 + (10 - 25)<em>t</em> ) g/L) * (25 L/s) = 5<em>c</em> (<em>t</em> ) /(200 - 3<em>t</em> ) g/s
In case it's unclear why this is the case:
The amount of liquid in the tank at the start is 1000 L. If water is pumped in at a rate of 10 L/s, then after <em>t</em> s there will be (1000 + 10<em>t</em> ) L of liquid in the tank. But we're also removing 25 L from the tank per second, so there is a net "gain" of 10 - 25 = -15 L of liquid each second. So the volume of liquid in the tank at time <em>t</em> is (1000 - 15<em>t </em>) L. Then the concentration of chlorine per unit volume is <em>c</em> (<em>t</em> ) divided by this volume.
So the amount of chlorine in the tank changes according to
which is a linear equation. Move the non-derivative term to the left, then multiply both sides by the integrating factor 1/(200 - 5<em>t</em> )^(5/3), then integrate both sides to solve for <em>c</em> (<em>t</em> ):
There are 20 g of chlorine at the start, so <em>c</em> (0) = 20. Use this to solve for <em>C</em> :
Answer:
no
Step-by-step explanation:
as 7 is a prime numbers and prime numbers cannot be reduced .
Answer:
It's a shared side???? It's a leg of a right triangle??? What are you specifically asking for? I need numbers
Step-by-step explanation:
Answer:
6.74cm
Step-by-step explanation:
Area of circle = π * r * r = 35.6
Radius of circle = √(35.6 ÷ π) ≈ 3.37
Diameter of circle = 2 * r = 6.74cm