Answer:
It is going 84.12s = 1 minute and 24.12 seconds to fill the tank.
Step-by-step explanation:
The filling time of a gas tank can be given by a first order function in this format:
In which 
is the current amount of fuel in the tank(in L), 
is the volume of the tank(in L), 
is the discharge rate of the tank(in L/s) and t is the time in seconds.
Finding the values of the parameters:
The tank is completly empty, so 
.
The volume of the tank is 14 gallons. However, the problem states that the volume of the tank is measured in liters.
Each gallon has 3.78L.
So 
The discharge rate for the gas is 38.0 l/min. However, the problem states that the discharge rate is in L/s. So, to find the value of r, we solve the following rule of three.
38 L - 60s
r L - 1s
Solving the equation:
It is going 84.12s = 1 minute and 24.12 seconds to fill the tank.
Remember that Distance = Speed x Time
When the 2 Balloons meet, they will be at the same height FROM THE GROUND :
Distance travelled by #1 : 10 + 15.Time
Distance travelled by #2 : 150 - 20.Time (the descending speed is negative)
Since it's the same distance from the ground, we can write:
10 + 15.Time =150 -20.Time
15.Time + 20.Time = 150 - 10
35.Time = 140
And Time = 4 minutes
Now take any equation and plug in Time = 4:
10 + 15.Time = 10+15x4 = 70 meters
OR
150 - 20.Time = 150-20x4 = 70 meters
Yo is this supposed to be in spanish
Answer:
As the x value increases, the y value also increases. So as one increases the other increases.
So your answer is
Greater hours worked, more cakes delivered
Step-by-step explanation:Hope this helps :-)
[surface area of the square pyramid]=area of the base+4*[area of one lateral triangle]
area of the base=12²----> 144 cm²
area of one lateral triangle=b*h/2
b=12 cm
h=slant height -----> 15 cm
area of one lateral triangle=12*15/2-----> 90 cm²
[surface area of the square pyramid]=144+4*[90]----> 504 cm²
the answer is
the surface area of the square pyramid is 504 cm²
