The 4-liter acid material was a lower concentration than 40%. Call it 4 liters of x percent acid.
4x+10*40
————— =30
X+10
Explanation:
Remember: we have to isolate the variable x, so that means we have to get x by itself.
Step 1:
Let’s look at our equation:

Let’s subtract 2x from both sides of the equation, since our goal is to isolate the variable. You could also subtract 6x from both sides, but you would end up with a negative number, and I find it easier to deal with positive numbers.

Step 2:
Now, let’s subtract 57 from both sides of our equation.

Step 3:
Since we have to isolate x, let’s divide both sides of the equation by 4.

Our final answer: x = 64.5
None of your options is the correct answer. Notify your teacher, tutor, etc. since there none of the options are correct.
Answer:
The center is (-4,-6) and the radius is 8
Step-by-step explanation:
(x+4)²+(y+6)²=64
The equation of a circle can be written in the form
(x-h)²+(y-k)²=r^2
Where (h,k) is the center and r is the radius
Rewriting the equation
(x - -4)²+(y- -6)²=8^2
The center is (-4,-6) and the radius is 8
Answer:
discount= lowered price markup= higher prices
Step-by-step explanation:
exactly what the answer is
Answer:
slope is -4/1 so
Step-by-step explanation: