Answer:
its option 1
Step-by-step explanation:
D, because if u plug it in both the equations, you will get the same solution.
y=x-1
2=3-1
2=2
y=-3x+11
2=-3(3)+11
2=-9+11
2=2
Let
denote the amount of salt in the tank at time
. We're given that the tank initially holds
lbs of salt.
The rate at which salt flows in and out of the tank is given by the relation
Find the integrating factor:
Distribute
along both sides of the ODE:
Since
, we get
so that the particular solution for
is
The tank becomes full when the volume of solution in the tank at time
is the same as the total volume of the tank:
at which point the amount of salt in the solution would be
So if x is equal to 1/3, then our equation would be 5/(1/3). When dividing by a fraction, you can multiply by the reciprocal to find the answer, meaning that if you divide by 1/3, you can multiply by 3/1. So your answer would be 15.
5/(1/3)=x
5*3=x
15=x
Answer:
Step-by-step explanation:
We can use the distance formula to solve this problem.
This distance formula states that the distance between two points and is equal to .
School is at coordinate point (9,6) and the closest point to school on Cherry St. is (4,-4).
Thus, the distance between school and Cherry Street is
Let's solve your equation step-by-step.
<span><span><span><span><span>3m</span>+<span>1m</span></span>−7</span>+<span>3m</span></span>=21
</span>Step 1: Simplify both sides of the equation.
<span><span><span><span><span>3m</span>+<span>1m</span></span>−7</span>+<span>3m</span></span>=21
</span><span>Simplify: (Show steps)
</span><span><span><span>7m</span>−7</span>=21
</span>Step 2: Add 7 to both sides.
<span><span><span><span>7m</span>−7</span>+7</span>=<span>21+7
</span></span><span><span>7m</span>=28
</span>Step 3: Divide both sides by 7.
<span><span><span>7m/</span>7</span>=<span>28/7
</span></span><span>m=4
</span>Answer:<span>m=<span>4</span></span>