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
ira [324]
3 years ago
15

A chemist mixes 4 liters of one acid solution with 10 liters of a 40% solution, resulting in a 30% acid solution. The table show

s the amount of each solution used. What is the value of x, the acid concentration of the first solution? 0.05 0.10 0.15 0.20 Mark this and return
Mathematics
2 answers:
kondaur [170]3 years ago
6 0

Given that amount of first acid solution = 4 liters

Let concentration of the first acid solution = x

then effective amount of first solution = 4x


Given that amount of second  acid solution = 10 liters

Givn that concentration of the second acid solution = 40% = 0.4

then effective amount of second solution = 0.4(10)


Then amount of resulting acid solution = (4+10) liters

Givn that concentration of the resulting acid solution = 30% = 0.3

then effective amount of resulting solution = 0.3(4+10)


Combining all those results gives equation

4x +0.4(10) = 0.3(4+10)

4x +4 = 0.3(14)

4x +4 = 4.2

4x = 0.2

x=0.05


Hence final answer is 0.05 or you can say 5%.



lukranit [14]3 years ago
5 0

Answer:

0.05

Step-by-step explanation:

on e2020

You might be interested in
Aristotle was born in 384 BC. Ron Howard was born in 1952 AD. HOW many years apart were they born?
rodikova [14]
The answer is 2336 cause bc was before Christ ad us after death so if we add them that's the answer
6 0
3 years ago
Original price: $30 Markdown: 16%<br> Please help
melomori [17]

Answer:

$25.86

Original price. 30.00

Markdown percent 16%

Markdown 4.14

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the area of this figure? Drag and drop the appropriate number into the box. A = cm² 108 135 189 318 A shape made up of a
Lyrx [107]
The square will have area
.. (9 cm)^2 = 81 cm^2.

The two triangles together will have area
.. (9 cm)*(12 cm) = 108 cm^2.

The sum of the areas of those three shapes is
.. 81 cm^2 +108 cm^2 = 189 cm^2
8 0
3 years ago
Read 2 more answers
The potential energy, P, in a spring is represented using the formula P = P equals StartFraction one-half EndFraction k x square
Anastaziya [24]

Answer:

k=\frac{2P}{x^{2}}

Step-by-step explanation:

<u><em>The question is</em></u>

Which equation should she use?

we have the formula

P=\frac{1}{2}kx^{2}

Solve for k

That means ----> isolate the variable k

Multiply by 2 both sides

2P=kx^{2}

Divide by x^2 both sides

\frac{2P}{x^{2}}=k

Rewrite

k=\frac{2P}{x^{2}}

6 0
3 years ago
I need help!!
iogann1982 [59]

Answer:

1st is valid 2nd is not valid

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • in 2003, the population of Zimbabwe was about 12.6 million people, in which is 1 million more than 4 times the population in 195
    13·1 answer
  • Write the quotient as a mixed number.<br> 63 divided by 5 = 12 R3
    7·1 answer
  • Find the nonpermissible replacement for s in this expression s-1/s-5​
    5·1 answer
  • White the number 876,543,210.25 in expanded notation
    13·1 answer
  • Can anyone help me with this ?
    12·1 answer
  • Which expression is equivalent to 2w?
    7·1 answer
  • Which line has a constant of proportionality between y and x of 1/2?
    14·1 answer
  • Plzzzzz HELP taking quiz need to finish
    8·1 answer
  • What is the opposite of division
    12·2 answers
  • PLS HELP FINAL EXAM
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!