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
Mumz [18]
3 years ago
14

A nurse mixes 50 cc of a 60% saline solution with a 20% saline solution to produce a 28% saline solution. How much of the 20% so

lution should he use?
Mathematics
2 answers:
Alex17521 [72]3 years ago
6 0

Answer:

  • 200 cc

Step-by-step explanation:

Let x be the added 20% solution.

<u>The salt content is same:</u>

  • 50*0.6 + x*0.2 = 0.28*(x + 50)
  • 30 + 0.2x = 0.28x + 14
  • 0.28x - 0.2x = 30 - 14
  • 0.08x = 16
  • x = 16/0.08
  • x = 200
gayaneshka [121]3 years ago
5 0

Let added amount be y .

  • The salt remains same

\\ \tt\Rrightarrow 50(0.6)+0.2y=0.28(y+50)

\\ \tt\Rrightarrow 0.2y+30=0.28y+14

\\ \tt\Rrightarrow 0.2y-0.28y=14-30

\\ \tt\Rrightarrow -0.08y=-16

\\ \tt\Rrightarrow 0.08y=16

\\ \tt\Rrightarrow y=\dfrac{16}{0.08}

\\ \tt\Rrightarrow y=200

You might be interested in
70.63 + 4.7 (show ur work take a pic)
Lisa [10]

Answer:

75.33

Step-by-step explanation:

70.63

<u>+4.7     </u>

75.33

4 0
2 years ago
Read 2 more answers
1. A parallelogram with four congruent sides is a? 2. A polygon with all angles congruent is a? 3. Angles of a polygon that shar
Sindrei [870]
Number one is a square number two is quadrillateral
8 0
3 years ago
Don’t understand this @ all
irina1246 [14]
Pair (3,11) should be removed because the domain x should never be repeated in a function.
Plz mark me as brainliest? Hope it helps.
4 0
3 years ago
4 pairs of pants for 22.60. what is the unit rate?​
Alona [7]

Answer:

$5.65

Step-by-step explanation:

Divide 22.6 / 4.

5.65

Best of Luck!

8 0
3 years ago
If a school policy maker wanted to learn what expectations must be met to receive funding from H.R.5, what titles would that per
lukranit [14]
I'm definite about a b c
7 0
3 years ago
Other questions:
  • The marinade for the barbeque called for 18 pints of tomato juice. how many fluid ounced were needed?
    5·1 answer
  • What is the LCD of thw fractions 1/3 and 11/15?
    9·1 answer
  • A charity organization had a fundraiser where each ticket was sold for a fixed price $70. They had to sell a few tickets just to
    7·1 answer
  • In triangle ABC angle BAD is 46° find BCA and AB=AD=AC
    15·1 answer
  • Please help !! I'm having a difficult time on this !
    5·1 answer
  • F (a) = 2a + 4<br> g(a) = a2 − 3<br> Find ( f g)(a)
    11·1 answer
  • F(1) if f(x) = x + 3
    8·1 answer
  • This graph represents a linear function.
    5·1 answer
  • What is the value of the expression below?
    10·1 answer
  • A point in quadrant iii is reflected across the y-axis. what is true about the new location? check all that apply.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!