Answer:
Step-by-step explanation:
Given
A plane has traveled 26 miles on a course heading east of north
Taking the component of travel in North direction
The distance traveled in North is given by with the help of figure
This is really simple and I think you can be able to do it on your own. Cheers.
Divide the angle into two equal (congruent) parts without actually measuring the angle.
Let be the number of liters of the 10% solution to be used, and the number of liters of the 4% solution. The chemist wants to end up with a 4 liter solution, so
For each liter used in the mixture, a concentration of either 10% or 4% acid will be contributed, and the goal is to make a 4L solution whose concentration is 7%, which means
Solving for gives , so 2L of both solutions is needed.