A.) 120 - 2.5t = 1.5t
Adding 2.5t to both sides,
120 - 2.5t + 2.5t = 1.5t + 2.5t
120 = 4t
Dividing both sides by 4,
t = 120 ÷ 4
t = 30
B.) The solution represents the fact that at 30 seconds, James and Brianne are at the same height after 30 seconds of riding the elevator and running up the stairs respectively.
C.) Assuming it takes 1 second to complete 1 feet, and after 30 seconds, they have completed 30 feet, the height above the ground floor when they are at the same height at the same time will be 120 - 30 = 90feet.
Answer:
1.5x10^10 KWh
Explanation:
Data obtained from the question include:
Power (P) = 3GW
We need to convert 3 gigawatts (GW) to Kilowatts (KW) in order to obtain the desired result. This is illustrated below:
1 GW = 1x10^6 KW
Therefore, 3 GW = 3x10^6 KW
Time (t) = 5000 hrs/yr
Energy (E) =?
Power is simply the amount of energy transferred per unit time. It can be expressed mathematically as:
Power (P) = Energy (E) / Time (t)
P = E/t
Applying the above formula, we can calculate the energy in kWh of electricity that can be produced by the plant in one year. This is illustrated below:
P = E/t
3x10^6 KW = E / 5000 hrs/yr
Cross multiply to express in linear form as shown below:
E = 3x10^6 KW x 5000 hrs/yr
E = 1.5x10^10 KWh
Therefore, 1.5x10^10 KWh of electricity can be produced by the plant in one year.
Taste (gustation) and smell (olfaction) are called chemical senses because both have sensory receptors that respond to molecules in the food we eat or in the air we breathe.
C perhaps slight doubt with my knowledge
