HELP ASAP I WILL GIVE 25 POINTS AND MARK BRAINLIST!!!!!!

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Complete Question

Write a rational equation that relates the desired percentage p, to the amount A of a 30% solution that needs to be added to 1 liter of 10% acid solution to make a blend that is p% acid, where 0<p<100 . What is a reasonable restriction on the set of possible values of ? Explain your answer.

Answer:

100(0.1 + 0.3A)= (1 + A) P

Step-by-step explanation:

A of a 30% solution that needs to be added to 1 liter of 10% acid solution to make a blend that is p% acid,

Hence,

10% of 1 + 30% of A = p%(1 + A)

0.10 + 0.3A = (p/100)(1 + A)

Divide both sides by 1 + A

0.1 + 0.3A/ 1 + A = p/100

Cross Multiply

100(0.1 + 0.3A) = 1 + A(p)

From the above calculation, we can see that, the blend that would be formed is not lower than 10% or greater than 30%

10% < p< 30%

Answer:

neither

Step-by-step explanation:

got it right 2020

Answer:

937.82 i think

Step-by-step explanation:

Answer:

y > -1/4x + 4

Step-by-step explanation:

First find the equation of the line itself, which is y = -1/4x + 4, then determine if graph shades above the line or below the line. If it shades above which is true in this case, it will be greater than. If it shades below which does not occur in this case, it will be less than. Because the line is dashed and not solid, it will just be greater than or less than.

Therefore y = -1/4x + 4 → y > -1/4x + 4 [Shades above the line, line is dashed].

Answer:

b

Step-by-step explanation:

Answer:

Its B

Step-by-step explanation:

Answer:

square root of 130

Step-by-step explanation:

9^2+7^2=c^2

81+49=c^2

130=c^2

C= square root of 130

Answer:

48/5

Step-by-step explanation:

hope it helps!

......

Answer:

discount

Step-by-step explanation:

goes under og price

Answer: 17

Step-by-step explanation:

Answer:

√10 = 3.162

Step-by-step explanation:

The square-root of 10 is;

√10 = 3.162

A number divided by 5 has its last digit as 0 or 5

In this case 25/5 = 5   and the √25 = 5

Answer:

x=2

Step-by-step explanation:

  y=-x+5

-1(y)=(x+1)-1   = -y=-x-1

   y=-x+5

+ -y=-x-1

  0=-2x-4

0=-2x-4

+4     +4

4=2x

1/2(4)=(2x)1/2

2=x

The x-coordinate of the solution to the system of equations is 3.

A system of equations is a set or collection of two or more equations with the same variables. The common solutions are the intersecting points of the equations. The number of equations and unknowns affects the existence and uniqueness of the solution. A system of equations can be classified similarly to single equations.

Given that, the graph given shows a system of equations,

We know that, the solution of the system of equations, is given by the point where the lines intersect,

So, here the lines intersect, at (3, 2)

Therefore, the x-coordinate is 3

Hence, the x-coordinate of the solution to the system of equations is 3.

Learn more about system of equations click;

https://brainly.com/question/12895249

#SPJ7

Answer:

y = -2/3x

Step-by-step explanation:

To write in y=mx+b form, you need the y-intercept (b) and the slope (m).

The y-intercept is the point the line crosses the y-axis.  This line crosses the y-axis of (0, 0).  This makes the y-intercept equal to 0.

The slope is the rise of the line over the run of the line.  Pick two points from the line.  It doesn't matter which ones, you will get the right answer regardless.  

I picked (0, 0) and (-3, 2).  Subtract the x-values from each other, and subtract the y-values from each other.

-3 - 0 = -3  (x)

2 - 0 = 2  (y)

Divide the y by the x to find the slope.

2/-3 = -2/3

Plug in the slope and y-intercept into the equation.

y = mx + b

y = -2/3x + 0

y = -2/3x

Answer:

[tex]-2\frac{9}{40}[/tex]

Step-by-step explanation:

[tex]-\frac{5}{8}+(-\frac{8}{5}) = -\frac{25}{40}-\frac{64}{40}[/tex] (find common denominator)

[tex]=-\frac{89}{40}[/tex]

[tex]=-2\frac{9}{40}[/tex] (reduce to simplest form)

Hope this helps :)

Answer:

she needs 6 containers.

Step-by-step explanation:

1 pound goes into each container. 6/1=6 so she needs 6 containers.

Answer:

imagine being able to still get away from the cops in the mini van with Tokyo Drift playing in the background lol

Step-by-step explanation:

Answer:

slope should be 1.50x and your y-intercept should be 7.50

Step-by-step explanation:

Answer:

KI = 9

Step-by-step explanation:

In ΔIJK,

∠K ≅∠J (given)

Therefore,

IJ ≅ KI (sides opposite to equal angles are equal)

Since,

IJ = 9

So,

KI = 9

Answer:

[tex]x=4[/tex]

Step-by-step explanation:

[tex]\textsf{Mean basis Theorem;}[/tex]

        [tex]\overline{JK}=2.\overline{NO}[/tex]

  [tex]3x+26=2\times19[/tex]

          [tex]3x=38-26[/tex]

           [tex]3x=12[/tex]

             [tex]x=12/3[/tex]

            [tex]\boxed{x=4}[/tex]

Answer:

Step-by-step explanation:

12n>135+4.50n

12(15)>135+4.50(15)

180>135+67.50

180>202.50

False. They will not make a profit since the cost is 202.50 versus the selling price 180

Answer:no its not a profit

Step-by-step explanation:

Answer:

40

Step-by-step explanation:

Answer:

40

here is the awnser buddy I hope it's right

Answer:

d

Step-by-step explanation:

8/3

Answer: -2/3

Step-by-step explanation:

If you want to find the slope of something, the quick way is to use [tex]\frac{rise}{run}[/tex].

In this situation, the “rise” (change in y axis) is -2 because it’s going down and the “run” (change in x axis) is 3. Therefore, it’s -2/3.

The formula to find slope is:

[tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1} }[/tex]

(I think, if I memorized it correctly)

Answer:

The lateral surface area is  [tex]80,638.4 \ cm^2[/tex]

Step-by-step explanation:

Lateral Surface Area of a Cylinder

It can be computed with the formula:

[tex]\displaystyle A=\pi r^2+2\pi rh[/tex]

Where:

r = radius of the circular base

h = height

The circumference of the base can be calculated as:

[tex]C = 2\pi r[/tex]

We are given the circumference C=252 cm, let's find the radius solving for r:

[tex]\displaystyle r=\frac{C}{2\pi}[/tex]

[tex]\displaystyle r=\frac{252\ cm}{2\pi}[/tex]

r = 40.1 cm

Now we calculate the lateral surface area knowing h=3 m=300 cm:

[tex]\displaystyle A=\pi 40.1^2+2\pi 40.1*300[/tex]

[tex]\boxed{A = 80,638.4 \ cm^2}[/tex]

The lateral surface area is [tex]80,638.4 \ cm^2[/tex]

Answer:

D represents a function pretty sure I had a problem like this as well

Step-by-step explanation:

Answer:

Gabriel needs to have $3.75 for sales tax.

Step-by-step explanation:

A sales tax rate of 6.25% means that 6.25 cents is going to be charged for tax for each dollar you spend. (Because 6.25% of $1.00 is 6.25 cents.)

If he was spending $10, the sales tax would be 62.5 cents (6.25 cents per dollar x 10 dollars). Since he is spending $60 on this item, the equation would be (6.25 cents per dollar x 60 dollars) (6.25 cents x 60 = 375 cents).

And 375 cents equals $3.75.

Answer: The cost for 42kg is $210

Step-by-step explanation:

375/75=$5 for 1kg

$5*42=$210

Your answer is 9(10 + 3)

Tell me if you need an explanation

Answer:

(30 x 3) + (5 x 3) = 105

Step-by-step explanation:

Answer:

2, 2

Step-by-step explanation:

its not in the line or the shaded part therefore it is not a solution.

Answer:46

Step-by-step explanation:

Answer:

Step-by-step explanation:

bc + ad = b

bc + ad/bc = b/bc

ad = b/bc

ad/d = b/bc + d

a = b/bc+d