Answer:
The holiday lasted for 18 days.
Explanation:
Let's assume the number of days are as following:
let the rain in the morning and lovely afternoon = X days
Clear morning and rain in the afternoon = Y days
No rain in the morning and in the afternoon = Z days
Now according to the question
Number of days with rain = X + Y = 13 days
Number of days with clear mornings = Y + Z = 11 days
Number of days with clear afternoons = X + Z = 12 days
Solving above 3 equations, we get
X = 7, Y = 6 and Z = 5
Now total number of days on holiday = X+Y+Z = 7+6+5 =18
Hence, total number of days on holiday = 18 days.
Answer:
method I = 88 chairs
method II = 62 chairs
Explanation:
This problem can be modeled by a system of two linear equations.
Define x as the number of chairs refinished by method I and y by method II
The sum of hours spent on both methods should equal 199 and the sum of total material cost should equal $1226, therefore:
Multiplying the first equation by -18 and adding it to the second equation we can solve for the value of y:
We can now apply the value of y found to the first equation and solve for x:
Therefore, they should refinish 88 chairs with method I and 62 chairs with method II
Answer:
towards the south
Explanation:
When the electron enters the region with magnetic field, it experiences a magnetic force perpendicular to both the directions of the electron's velocity and the magnetic field.
The direction of the force exerted on the electron can be found by using the right-hand rule:
- Index finger: direction of the velocity of the electron --> towards the east
- Middle finger: direction of the magnetic field --> downward
- Thumb: direction of the force on a positive particle --> towards the north
However, the electron is a negatively charged particle, so we must reverse the direction of the force: therefore, the force exerted on the electron is towards the south.
Answer:
A
Explanation:
Scattering of light occurs when light passes through an imperfect medium (such as an ice block filled with bubbles). Each ray of light hit the medium differently and hence deflected differently from the rest. An example of a case scenario is during a hot dry day on tarmac that causes one to see a 'water pool' on the road due to mirage.
Answer:
So the answer would be water based on the evidence shown below.
Explanation:
Mercury is a poor conductor of heat but good for electricity, water is a good conductor of heat but a poor conductor of electricity, wood is a poor conductor of heat and electricity, and glass is probably the worst conductor of heat.
