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
Lemur [1.5K]
3 years ago
11

Two solutions of different concentrations of acid are mixed creating 40 mL of a solution that is 32% acid. One-quarter of the so

lution is made up of a 20% acid solution. The remaining three-quarters is made up of a solution of unknown concentration, c. Which equation can be used to determine c, the unknown concentration? 30c + 10(0.2) = 40(0.32) (c) + (0.2) = 40(0.32) (c)( (0.2)) = 40(0.32) 30(c)(10(0.2)) = 40(0.32)
Mathematics
2 answers:
Georgia [21]3 years ago
6 0
In order to construct this equation, we will use the variables:
V to represent mixture volume (40 ml)
C to represent mixture concentration (0.32)
v₁ to represent volume of first solution (40 / 4 = 10 ml)
c₁ to represent concentration of first solution (0.2)
v₂ to represent the volume of the second solution (40 * 3/4 = 30 ml)
c₂ to represent the concentration of the second solution 


We know that the total amount of substance, product of the volume and concentration, in the final solution is equal to the individual amounts in the two given solutions. Thus:
VC = v₁c₁ +  v₂c₂
40(0.32) = 10(0.2) + 30c
n200080 [17]3 years ago
4 0

Simplified Answer:

A.  30c + 10(0.2) = 40(0.32)

(for edg)

You might be interested in
What can be used to prove that d is perpendicular to t?
Lorico [155]
Perpendicular Transversal Theorem <span>can be used to prove that d is perpendicular to t.

The theorem states that : </span><span>In a plane, if a line is perpendicular to one of the 2 parallel lines then it is perpendicular to the other.</span>
8 0
3 years ago
Read 2 more answers
A b c or d please hurry thanks!
otez555 [7]

Answer:

C)  a = 10√3, b = 5√3, c = 15 , d = 5

Step-by-step explanation:

Here we use the ratio of 30, 60, 90 degree triangle.

The ratio of sides, 1:√3:2

2x = 10

x = 5

d = 5

b = 5√3

c = 5√3√3

c = 5*3 = 15

c = 15

a = 2(5√3)

a = 10√3

Therefore, a = 10√3, b = 5√3, c = 15 and d = 5

Thank you.

8 0
3 years ago
Read 2 more answers
An artist designed a badge for a school club. Figure ABCD on the coordinate grid
stiv31 [10]

Answer: (0, -3)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
How many triangles can be constructed with side lengths 5, 7, and 15?
IrinaVladis [17]
More than ne triangle
5 0
3 years ago
Read 2 more answers
12. The equation y = 1.2x + 3 can be used to approximate the total revenue y, in millions of dollars, of the eQuest Company in y
brilliants [131]

Answer:

A

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Prime factorization 64 ladder diagram
    6·1 answer
  • Help please 10 minutes!!!!!!!!!
    7·1 answer
  • 27/9+8ggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg
    5·1 answer
  • Find the area of the region under the graph of the function f on the interval
    11·1 answer
  • Which is the correct answer ? please help !
    5·2 answers
  • 23. 18+ (5 + 6m)<br>25.10y(7) how do do this​
    8·1 answer
  • A table of values of a linear function is shown below. Find the output when the input is n.
    15·2 answers
  • HELPPP! Pleaze I will give 30 points!
    9·2 answers
  • According to American Airlines, flight 71098 from New York to Los Angeles is on time 88.9% of the time. Assume that we randomly
    15·1 answer
  • Three men went into a second-hand shop to buy a
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!