<em>x = - 2</em>
<em>y = 5</em>
- <em>Step-by-step explanation:</em>
<em>Hi there ! </em>
<em>2x + 9 = y</em>
<em>y = - 4x - 3</em>
<em>
</em>
<em>equality</em>
<em>2x + 9 = - 4x - 3</em>
<em>2x + 4x = - 9 - 3</em>
<em>6x = - 12</em>
<em>x = - 12 : 6</em>
<em>x = - 2</em>
<em>replace x = - 2</em>
<em>2(-2) + 9 = y</em>
<em>- 4 + 9 = y</em>
<em>y = 5</em>
<em>Good luck !</em>
<em />
<em />
Answer:
Step-by-step explanation:
The units are cubic feet or ft^3
V = L * W * H
L = 5.2
W = 4
H = 3.5
All dimensions are in feet.
V = 5.2 * 4 * 3.5
V = 72.8 ft^3
Answer:
It will take about 35.49 hours for the water to leak out of the barrel.
Step-by-step explanation:
Let 
be the depth of water in the barrel at time 
, where 
is measured in inches and in hours.
We know that water is leaking out of a large barrel at a rate proportional to the square root of the depth of the water at that time. We then have that
where 
is a constant of proportionality.
Separation of variables is a common method for solving differential equations. To solve the above differential equation you must:
Multiply by 
Multiply by 
Take integral
Integrate
Isolate
We know that the water level starts at 36, this means 
. We use this information to find the value of 
.
At t = 1, y = 34
So our formula for the depth of water in the barrel is
To find the time, , at which all the water leaks out of the barrel, we solve the equation
Thus, it will take about 35.49 hours for the water to leak out of the barrel.
The answer would be: -5
Heres how you solve it!
First, change the x into a 0 so it can be removed.
y+2= -3/4*4
Now with the GCF you can reduce the numbers with 4.
y+2= -3
Then move the 2 to the other side causing it to change its sign into a negative
y= -3-2
Since -3 and -2 are both negative it would be -5
y= -5
then you are left with your answer.
Hope this helps! :3
Answer:55$
Step-by-step explanation:84.61 x .35 = 29.61
84.61 - 29.61 = 55
