1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
katrin [286]
3 years ago
9

A pharmacist wishes to mix a solution that is 6% Minoxidil. She has on hand 100 ml of a 2% solution and wishes to add some 8% so

lution to obtain the desired 6% solution. How much 8% solution should she add?
She should add
ml.
Mathematics
1 answer:
son4ous [18]3 years ago
6 0

Answer:

200 ml

Step-by-step explanation:

It's proportions basically.

frst off, 2% of 100 ml is 2 ml, so the 100 ml solution has 2 ml of Minoxidil.

Eventually we want 6/100 to be the porportion.  so the total is going to be 100 (from the initial 100 ml) plus however much is needed x.  And we want the amount of Minoxidil to be 2 + 8 percent of x.  so this gets us the equation

6/100 = (2 + .08x)/(100+x)  Then we solve

(100 + x) 6/100 = 2 + .08x

(100 + x) 6 = 200 + 8x

600 + 6x = 200 + 8x

400 = 2x

x = 200

so they should add 200 ml

You can check too.  there is 100 + 200 ml of solution total and 2 + 16 ml of Minoxidil so that's 18/300 = 6/100

You might be interested in
2=6<br> 3=12<br> 4=20<br> 5=30<br> 6=42<br> 9=?
REY [17]
It is a pattern so 2*3=6
3 times 4 is 12
4 times 5 is 20 
5 times 6 is 30
6 times 7 is 42
so, 9 times 8 is 72.

please vote as brainliest
4 0
3 years ago
The width of a kitchen is 4.2 metres.
Svetradugi [14.3K]

Given:

The width of a kitchen is 4.2 metres.

Kitchen cupboard widths are 60 cm.

To find:

The number of kitchen cupboard that will fit in 4.2 metres.

Solution:

Let x be the number of kitchen cupboard that will fit in 4.2 metres.

Width of 1 cupboard = 60 cm

Width of x cupboards = 60x cm

We know that, 1 m = 100 cm.

Width of a kitchen = 4.2 metres

                              = 4.2×100 cm

                              = 420 cm

Now, the width of the x cupboards is equal to width of the kitchen.

60x=420

x=\dfrac{420}{60}

x=7

Therefore, the number of kitchen cupboard that will fit in 4.2 metres is 7.

5 0
3 years ago
Hello i need help please
Usimov [2.4K]
Option B is correct
8 0
3 years ago
Read 2 more answers
LABEL THE TRIANGLE!! PLEASE HELP!!
Anettt [7]

Answer:

Determination of HYP,OPP,ADJ with respect to x.

<u>Opposite</u><u> </u><u>side</u><u> </u><u>of</u><u> </u><u>right</u><u> </u><u>angle</u><u>:</u><u>Hypotenuse</u><u>:</u><u> </u><u>AC</u>

<u>Opposite</u><u> </u><u>side</u><u> </u><u>of</u><u> </u><u>given</u><u> </u><u>angle</u><u>:</u><u> </u><u>Opp</u><u>:</u><u>BC</u>

<u>remaining</u><u> </u><u>side</u><u> </u><u>of</u><u> </u><u>a</u><u> </u><u>triangle</u><u>:</u><u> </u><u>Adjacent</u><u>:</u><u>AB</u><u>.</u>

8 0
3 years ago
Click on the phrase (s) that describe a nonlinear function.Kathy is planning to move to a different state next month. She finds
pshichka [43]

Answer:

The rental company also provides 4 different sizes of moving boxes for purchase.The volume of each box doubles in size from the volume of the next smallest box

Step-by-step explanation:

Linear functions those relation which produces a straight line graph while non - linear functios produces curves or other shapes asides a straight line. Non linear functios could be quadratic, Exponential or so on in nature.

Equation of a linear equation include :

y = a + bx OR

y = bx

First expression :

y = $50 + x ;

slope, b = 1 ; intercept, a = 50

Third expression :

y(x) = 105x

Second expression:

V(x) = V0 * e^2x

Second expression is exponential while the first and third is linear.

4 0
3 years ago
Other questions:
  • Select the correct answer.
    5·2 answers
  • 25 is what percent of 37
    12·2 answers
  • TV−→− bisects ∠RTS. If the m∠RTV=(16x−6)° and m∠VTS=(13x+9)° , what is the value of x and the m∠RTV ?
    7·1 answer
  • Help please please help
    7·1 answer
  • Trisha took 3.25 minutes to complete the race an Rachel took 3.207 minutes to complete the race who won the race ​
    8·2 answers
  • A 300 gallon tank is initially full and water is being drained at a rate of 4 gallons per minute.
    13·2 answers
  • What is an outlier number?<br>​
    10·2 answers
  • Emilio's designs call Seven rectangles in every 140cm .How many rectangles will be presented in 220 cm
    15·1 answer
  • 2.5 quarters weigh approximately 1 ounce. How many pounds would you expect a
    5·1 answer
  • Determine the intercepts of the line
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!