To solve this question you need to cross multiply
So first do 3(2x+1) = 4(3x-2)
Which gives you 6x+1 = 12x-8
Now you solve it like a normal equation
6x+1 = 12x-8
9 = 6x
3/2 = x
It will take you 3/4 of an hour, or 45 minutes to paint 1 wall.
Answer:
The perimeter is 104
Step-by-step explanation:
The formula for a peremeter is 2 * length + 2 * width.
Substitute the length and width for the given values.
2 * length + 2 * width
2 * 32 + 2 * 20
64 + 40
104
−4.5(x−8.9)=12.6
Simplify:
−4.5x+40.05=12.6
Step 2: Subtract 40.05 from both sides.
−4.5x+40.05−40.05=12.6−40.05
−4.5x=−27.45
Step 3: Divide both sides by -4.5.
−4.5x
−4.5
=
−27.45
−4.5
x=6.1
Answer:
x=6.1
Step-by-step explanation:
The Newton's law differential equation is:
We solve by variable separation
integrating both sides between time 0 to time t, T(0) = 0 to T(t).
applying logarithm properties
(*)
applying exponential function to both sides
Now replacing the condition T(1) = 45 in (*)
