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
earnstyle [38]
3 years ago
13

A doctor ordered 300 ml of a 10% solution,but the pharmacy only has 5% and 25% solutions. How many millimeters of each solution

should the pharmacist mix to get the prescribed medication for the man?
Mathematics
1 answer:
serg [7]3 years ago
3 0

Answer:


Step-by-step explanation:

(300 * 0.1) = (0.05 * x) + (0.25 * (300 - x))

30 = 0.05x + 75 - 0.25x

-45 = -0.2x

x = 225.

So there would be...

<h2>225 milliliters of 5% solutions</h2><h2>and</h2><h2>75 milliliters of 25% solutions.</h2><h2 /><h2>Feel free to contact me if you have issues or difficulties.</h2>
You might be interested in
How can exercise affect the risk of a cardiac event? What is important to
SSSSS [86.1K]

Regular, moderate to vigorous physical activity helps reduce the risk of cardiovascular disease. Physical activity can help control blood cholesterol, diabetes and obesity. It can also help to lower blood pressure in some people.
4 0
3 years ago
Solving multi-step equations <br><br> 2(x + 7) – 34 = 4x – 11x + 4(x - 1)
Zarrin [17]

Answer:

x = 16/5

Step-by-step explanation:

2x + 14 -34 = 4x - 11x + 4x - 4

2x - 20 = -3x - 4

5x = 16

6 0
3 years ago
Read 2 more answers
Which expression is equivlent to (3^2)^-2?<br><br>A) -81<br>B) -12<br>C) 1/81<br>D) 1/12​
Colt1911 [192]

Answer:

Answer: 1/81

First you simplify it to 3^-4

Then express it with a positive exponent

which goes to 1/3^4

Then evaluate it to 1/81

6 0
3 years ago
Read 2 more answers
If an event has a 55% chance of happening in one trial, how do I determine the chances of it happening more than once in 4 trial
aev [14]

The chances of it happening more than once in 4 trials is 13%

<h3>How to determine the number</h3>

From the information given, we have can deduce that;

Probability of 1 trial = 55%

= 55/ 100

Find the ratio

= 0. 55

We are to find the probability of it happening more than once in 4 different trials

If the probability of it happening in one trial is 555 which equals 0. 55

Then the probability of it happening in 1 in 4 trials is given as;

P(1/4 trials) = 1/ 4 × 55%

P(1/4 trials) = 1/ 4 × 0. 55

Put in decimal form

P(1/4 trials) = 0. 25 × 0. 55

P(1/4 trials) = 0. 138

But we have to know the percentage

= 0. 138 × 100

Multiply the values, we have

= 13. 8 %

Thus, the chances of it happening more than once in 4 trials is 13%

Learn more about probability here:

brainly.com/question/24756209

#SPJ1

6 0
2 years ago
Sasha borrows $100 at 12% simple interest, to be paid back in one year . How much does she pay back
amid [387]

Answer:

$289 I think

Step-by-step explanation:

$289 I think

sorry if I am wrong

8 0
3 years ago
Other questions:
  • (x-3)(x2+2x+7)<br> Simplified
    7·1 answer
  • Which statements are true about the rules of multiplication for signed numbers? Check all that apply.
    7·2 answers
  • Solve this system of equations<br> 3x+4y=36<br> y= -1/2x+8<br><br> x=<br> y=
    12·1 answer
  • I don't know pls pls plsssssss help me I don't understand!!!!
    8·2 answers
  • A helicopter is hovering over a landing pad 100 m from where you are standing. The helicopter's
    7·1 answer
  • 1/4*8/9 please help Ill give points​
    14·2 answers
  • A person places $848oo in an investment account earning an annual rate of 4.1%,
    13·1 answer
  • PLZ HELP ME WITH THIS!! 5/2 c = 8 1/3 *
    8·1 answer
  • What is the median value of the data set shown on the line plot?
    14·1 answer
  • Find the area of the shaded region. geometry please help if your good at it. will mark brainlist
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!