A spuare has a side length of 5 1/2 inches. This square is dilated by the square factor of 4/5 to create a new square. What is the side length of the new square ?
a laboratory technician needs to make a 40-liter batch of a 40% acid solution. How can the laboratory technician combine a batch of an acid solution that is pure acid with another that is 20% to get the desired concentration?
