To start take the equation and then plug in 9 for x
3x+4y=43
3(9)+4y=43
27+4y=43
Subtract 27 from each side to get all of the y's by themselves
27+4y-27=43-27
4y=16
Divide by four to get the value of one y
4y/4=16/4
y=4
Answer:
k is the constant of proportionality
2 1/4 gallons
Step-by-step explanation:
y = kx, k is the constant of proportionality
y = how much of the tank is filled
x = how many gallons used
1/3 = k (3/4)
Multiply each side by 4/3 to isolate k
4/3*1/3 = k (3/4)*4/3
4/9 = k
y = 4/9x
We want y to be 1 for a full tank
1 = 4/9 x
Multiply each side by 9/4 to isolate x
9/4 = 4/9 x * 9/4
9/4 =x
We need 9/4 gallons or simplifying
2 1/4 gallons
Answer:
arrow 4
Step-by-step explanation:
The amount of energy needed in the transformation from liquid to gas is equal to the gas to liquid transition.
Boiling is the mechanism by which a substance passes from the liquid phase to the gaseous form.
Like water diagram in phase:
Evaporisation is a method of phase shift in which the water transitions from a liquid to a gas (water vapour).
Condensation is the process of phase shift in which water transitions from a gas to a liquid, and the vapour becomes a cloud.
A = 1/2h(b1+b2)
A = 1/2(8)(19+11)
A = 4(30)
A= 120m^2
Hope this helps! :)
Answer:
5.75 feet is the same as 5 ft 9 inches (because 12 in = 1 ft and 0.75 * 12 = 9 so its 9 in). 7 ft 10 in - 5 ft 9 in = 2 ft 1 in.
