During a windstorm, part of the top of a flagpole breaks off. The broken top portion touches the ground at an angle of 65degrees
1 answer:
The situation in the problem creates a right triangle with a base of 14ft. An angle of 65 degrees means that the triangles has...
A hypotenuse of
, representing the length of the broken part of the pole.
An opposite of
, representing the height of the part of the flag that still stands.
The total original flag height is the sum of the two parts.
A hypotenuse of
An opposite of
The total original flag height is the sum of the two parts.
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Answer:
We must add 400 ml of water.
Step-by-step explanation:
We can use the following equation:
Where:
- C(i) is the initial concentration of the solution (80%)
- C(f) is the final concentration of the solution (30%)
- V(i) is the initial volume (150 ml)
- V(f) is the final volume
Now, we just need to solve the equation for V(f).
Therefore, we must add 400 ml of water.
I hope it helps you!