Answer:
25 quarters, 23 dimes, and 0 nickels.
Explanation:
Let n = number of nickels, q = number of quarters, and d = number of dimes
n + d = q - 2
n + d + q = 48
8.05 = .25q + .1d + .05n
so
(q-2) + q = 48
2q = 50
q = 25
Using that q value:
n + d = q - 2 --> n + d = 25 - 2 --> n + d = 23 --> n = 23 - d
Using that n value and q value:
8.05 = .25(23) + .1d + .05(23 - d)
8.05 = 5.75 + .1d + 1.15 - .05d
2.30 = 1.15 + .05d
1.15 = .05d
23 = d
Using that d value and q value:
n + d + q = 48 --> n + 23 + 25 = 48
n + 48 = 48
n = 0
Therefore there are 25 quarters, 23 dimes, and 0 nickels.
Checking that with:
8.05 = .25q + .1d + .05n
8.05 = .25(23) + .1(23) + .05(0)
8.05 = 5.75 + 2.30 + 0
8.05 = 8.05 ✓
Answer:
The reference point of happiness is derived from personal perceptions.
Explanation:
Perception is a product of the individual's learning, memory, expectation, and attention to sensory signals. Individual perceptions are shaped by many factors. One factor relates to the fact that individuals have some differences in how they assess their emotional states. Some individuals focus on themselves, while others focus on other people. The loci of focus affect how they perceive their happiness. Another factor is the way individuals process information. Some process information quickly while other people take time to think and process the information about their states of happiness. The depth of attribution also differs from one person to another. This suggests that while somebody may be considered to be unhappy, the same individual may be enjoying his or her life without qualms.
Answer:
Concentration, Temperature, Mass of Particle, Solvent /medium, surface area and permeability properties of membrane.
Explanation:
The random movement of particles causes the phenomenon called diffusion. The concentration gradients of particles pushes molecules in a direction such that molecules move from a region of high concentration to a region of lower concentration.
Diffusion is a passive process (not requiring the input of energy).
The following variables are factors that affects diffusion;
Concentration - down concentration gradient favours diffusion.
Temperature - temperature increases diffusion , the kinetic energy associated with each particle also increases.
Mass/size of Particle - Smaller particles on the other hand will diffuse faster because they can move faster.
Solvent /medium Properties - Viscosity and density of the medium greatly affect diffusion. Highly viscous and dense medium slows down diffusion.
Diffusion can occur through a membrane. The two factors that are particular to diffusion through a membrane are surface area and permeability.
Answer:
help improve the documentation and maintenance of nursing care plans
help develop new techniques for diagnosing illnesses
