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
Artemon [7]
3 years ago
9

A pharmacist has 80 milliliters of a 25% saline solution. Which expression can be used to find the percentage concentration of t

he
final solution if she adds x milliliters of a 10% saline solution?
025(80)+0.17
0.25(80)+0.1X 100
y=
0.25(80)+0.1100
y= 80.0.1%
y 0 25/00) + 0.IX 100
0.25(80)+0.12
Mathematics
1 answer:
Ugo [173]3 years ago
5 0
0.25 and y=80.01%. And the rest are wrong.
You might be interested in
Find the area of a regular pentagon with side equal to 3 and apothem equal to k. 1.5k 7.5k 12k
Anna007 [38]
Area=(5/2)*(3*k)=7.5k
8 0
3 years ago
Read 2 more answers
I need help with this question
IgorC [24]

The expression that shows the total gallons is 0.5gallon/1 day*16cups/1gallon * 7days/1week

<h3>Dimensional Analysis</h3>

From the given question, we are told that Katrina drinks 0.5 gallons per day. In order to determine the total cup that she drank in a a week, we will have:

Total gallons in a week. = 0.5gallons/1 day * 7days/1

Total gallons in a week = 3.5 gallons

Since 1 gallon. = 16 cups, then;

3.5 gallons = 16cups/1gallon * 3.5gallons

3.5 gallons = 56 cups

Hence the expression that shows the total gallons is 0.5gallon/1 day*16cups/1gallon * 7days/1week

Learn more on dimensional analysis here: brainly.com/question/18559676

#SPJ1

5 0
1 year ago
Help what is the value of X
EastWind [94]
I hope this helps. Since there are verticale angles that’s why I added another x.

5 0
3 years ago
An investor puts $2,500 into a life insurance policy that pays 10% simple annual interest. If no additional investment is made i
Novosadov [1.4K]

Answer:

$3750

Step-by-step explanation:

Amount = principal + interest

Simple interest = Principal *Rate * time/100

Simple interest = 2500*10*5/100

Simple interest  = 25*50

Simple interest = $1250

Amount = $2500+$1250

Amount after 5 years is $3750

4 0
3 years ago
What is the radius of a circle whose equation is x^2+y^2-10x+6y + 18=0
rjkz [21]

Answer:

Explanation:

We must write this equation in the form

(

x

−

a

)

2

+

(

y

−

b

)

2

=

r

2

Where

(

a

,

b

)

are the co ordinates of the center of the circle and the radius is

r

.

So the equation is

x

2

+

y

2

−

10

x

+

6

y

+

18

=

0

Complete the squares so add 25 on both sides of the equation

x

2

+

y

2

−

10

x

+

25

+

6

y

+

18

=

0

+

25

=

(

x

−

5

)

2

+

y

2

+

6

y

+

18

=

0

+

25

Now add 9 on both sides

(

x

−

5

)

2

+

y

2

+

6

y

+

18

+

9

=

0

+

25

+

9

=

(

x

−

5

)

2

+

(

y

+

3

)

2

+

18

=

0

+

25

+

9

This becomes

(

x

−

5

)

2

+

(

y

+

3

)

2

=

16

So we can see that the centre is

(

5

,

−

3

)

and the radius is

√

16

or 4

6 0
3 years ago
Other questions:
  • The sum of the measures of the interior angles in a convex polygon is 1,260°. How many sides does the polygon have?
    9·2 answers
  • A nonzero polynomial with rational coefficients has all of the numbers [1 sqrt{2}, ; 2 sqrt{3}, ;3 sqrt{4},; dots, ;1000 sqrt{10
    13·1 answer
  • What is the value of x if a rectangle has a perimeter of 50, a length of x + 5, and width of 11?
    10·1 answer
  • List the coordinates of the image after a rotation of the figure below of 180° about the origin. ( a0, a1) ( a2, a3) ( a4, a5) (
    5·2 answers
  • Find the value of x (approximately),
    9·1 answer
  • What is the answer to his
    15·1 answer
  • If misty has been traveling for 9hours how many miles of the trip does she have remaining
    13·1 answer
  • The width of Abby's swimming pool is 24 feet. What is equal to 24 feet?
    9·1 answer
  • 133=7(1+2x) solve<br> Answer ASAP please
    14·2 answers
  • Which value of k would cause the system of linear equations 35 x 14 y = 119 and 5 x 2 y = k to have an infinite number of soluti
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!