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
bekas [8.4K]
3 years ago
10

How much of 10% HCl and 35% HCl would be needed to mix and produce 60 liters of 25% HCl?

Mathematics
2 answers:
andreyandreev [35.5K]3 years ago
8 0

Answer:

about 36 and 24 liters  

Step-by-step explanation:

    a+b = 60     1

let A multiplied by  10 percent and B multiplied by 35 percent then

  10 a + 35 b = 1500 ( 60 * 25 ) 2

add no. 1 to 2 and multiply no.1  by -10

-10 a+ -10 b = -600

10 a+ 35 b = 1500  adding

then     25 b = 900 then         b = 36 liter

then     a = 24 liter    

     

puteri [66]3 years ago
5 0

Answer:

<em>Equation: </em>

<em>HCL + HCL = HCL </em>

<em><u>0.30x + 0.45(50-x) = 0.35*50 </u></em>

<em><u>Multiply thru by 100 to get: </u></em>

<em><u>30x + 45*50 - 45x = 35*50</u></em>

<em><u>-15x = -10*50 </u></em>

<em><u>x = (2/3)50 </u></em>

<em><u>x = 33 1/3 liters (amt. of 30% solution needed in the mixture) </u></em>

<em><u>50-x = 16 2/3 liters (amt. of 45% solution needed in the mixture) </u></em>

=============

Step-by-step explanation:

You might be interested in
Solve for b. -11b+7 = 40−11b+7=40
Oksana_A [137]

Answer:

This equation is false

Step-by-step explanation:

Well,

-11b + 7 = 4 - 11b + 7 = 40

combine like terms

-11b + 7 = -11b + 3 = 40

Communicative property

-3 to both sides

-11b + 4 = -11b = 40

-4 to both sides

-11b = -11b = 36

+11b to both sides

0 = 36

0 is not equal to 36 meaning that this equation is false.

<em>Thus,</em>

<em>the equation given is false.</em>

<em />

<em>Hope this helps :)</em>

6 0
3 years ago
If you used 3/4 of the blue paint to make flames on one of the cars, and need 7 3/4 pints of blue paint to paint another car, wh
ki77a [65]

3/4 of 7 pints were used. of, in this case, means to multiply. 3/4 x 7= 21/4= 5 and 1/4 pints. Now we subtract 5 and 1/4 (because this is how much was used) from 7. 7- 5 and 1/2 = 1 and 1/2

If you have questions, feel free to ask.

5 0
3 years ago
There were 4.24 liters of Solution B available in the science lab. Lotte used 0.38 of that amount. By rounding to the greatest p
Blizzard [7]

Answer:

B:0.16

Step-by-step explanation:

Because you keep adding it and you will soon have 4.24 liters

8 0
3 years ago
Help me please help me
scoundrel [369]

Answer:

C

Step-by-step explanation:

8 0
3 years ago
1. Find the slope of the line.
bija089 [108]

Answer:

1/2

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Select the graph of the system of linear equations which has the solution (-3, 5).
    14·1 answer
  • Ron tosses a 6-sided number cube labeled 1 to 6. Describe the probability that he tosses a number greater than 1. Explain your r
    15·2 answers
  • This figure is made from squares and a part of a circle.
    8·1 answer
  • The perimeter of a square is 66.8 cm. What is the side lengh of the square​
    15·1 answer
  • Find the radian measure of the central angle
    11·1 answer
  • What is 0.75*0.75*0.75*0.75*0.75 written as a power
    14·1 answer
  • Write down two different prime numbers that have a sum of 24
    13·2 answers
  • a trapezoid has parallel sides of length 26 mm and 44 mm. its other sides measure 10 mm and 17 mm. what is the length of the bim
    12·1 answer
  • The difference of three times a number and 4 is 13. Find the number. Round your answer to the hundredths place as needed.
    13·1 answer
  • A point M on a segment with endpoints X (1, −2) and Y (10, 3) partitions the segment in a 5:1 ratio. Find M.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!