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
Allisa [31]
4 years ago
12

A laboratory technician needs to make a 108​-liter batch of a 20​% acid solution. How can the laboratory technician combine a ba

tch of an acid solution that is pure acid with another that is 10​% to get the desired​ concentration?
Mathematics
1 answer:
Gala2k [10]4 years ago
6 0
<span>12 liters of pure acid and 96 liters of 10% acid solution Using mass and component balance: Let x = liters of pure acid and y = liters of 10% acid Mass balance: x + y = 108 Component balance: 100%*x + 10%*y = 20%*108 or x + 0.1y = 21.6 Solving for x and y: x = 12 and y = 96</span>
You might be interested in
How do you write “twice a number less than 3 is 17” as an equation?
ki77a [65]

Answer:

2 x 3 < 17

Step-by-step explanation:

Greater than and/or less than step by step equasion.

4 0
3 years ago
The eight term of a geometric progression is given by Sn= -[-3(sin^2x + cos^2x)^n + In e. Find the first term and common ratio.​
igor_vitrenko [27]

Answer:

Step-by-step explanation:

Sn= -[-3(sin^2x + cos^2x)^n + In e.

sin^2x + cos^2x = 1  and ln e = 1, so

Sn = -(-3)^n + 1

When n = 8

this = -(-3)^8 + 1

7 0
3 years ago
Which number can each term of the equation be multiplied by to eliminate the decimals before solving?5.6j – 0.12 = 4 1.1j
Sergeu [11.5K]
The answer is:  "100" .
________________________
Explanation:
__________________________
Looking at the ENTIRE EQUATION (all numeric values on BOTH sides of the equation), we can see that the decimal that with the most decimal places goes to the right, to the hundredths place (i.e. two places); so by multiplying the ENTIRE EQUATION (BOTH SIDES—i.e. EACH term on EACH SIDE) by "100", we get rid of ALL the decimals, as follows:
_________________________________________
100*  {<span>5.6j – 0.12 = 41.1 j ) ; 

</span>↔ (100* 5.6j) – (100 * 0.12) = (100 * 41.1 j );

↔  560 j – 12 = 4110 j ;
______________________________


7 0
3 years ago
Read 2 more answers
3. Divide 7/24 by 35/48 and reduce the quotient to the lowest fraction. A. 4/10 B. 245/1152 C. 42/48 D. 2/5
s344n2d4d5 [400]
To divide fractions, you would multiply the reciprocal. What this means is that you would flip the fraction, so if you flip the fraction 35/48, that is 48/35. And because we flipped it, we now need to multiply it with the other fraction. This would be \frac{7}{24} *  \frac{48}{35}. Now we can use cross multiplication to simplify. We can see that 48/24 is 2, and 2/1 = 2. So we can replace 48 with 2, and 24 with 1. Now we can also see that 35/7 = 5, and 5/1 = 5. So we can replace 35 with 5 and 7 with 1. So our new fractions are \frac{1}{1} * \frac{2}{5}. And therefore your answer is D. 2/5. Hope this helps. Feel free to ask more questions, or ask questions about my explanation.
7 0
3 years ago
Read 2 more answers
Carlos ran 3/8 of the race course. Lori ran 3/6 of the same course. Who ran farther?
Vesna [10]
Lori because it has a smaller denominator. When numerator are the same look at who has the smaller numerator
8 0
3 years ago
Other questions:
  • Thompson Alberts purchased a pack of 12 pencils for $4.99. What is the unit price per pencil rounded to the nearest tenth of a c
    5·2 answers
  • What the LCM of 32 and 45
    5·1 answer
  • A plane flies with an average velocity of -98.5 m/s for 45.0s. what was it's displacement?
    8·1 answer
  • For a school fund raising project, Aiden and Jacob collected money in the ratio of 3.5 : 6.8. Jacob collected $115.50 more than
    13·1 answer
  • Express 3/4 in sixty fourths and 3/8 in thirty seconds. Show how to find the answers plzz
    14·1 answer
  • Three times than five times a number​
    8·1 answer
  • PLZ ANSWER ASAP WILL MAKE BRAINLIEST FOR BEST ANSWER AND EXPLAIN YOUR ANSWER
    12·2 answers
  • What are the solution to the system of equations graphed below?
    12·1 answer
  • Can I see how long division works on these? pls no sketchy links
    5·1 answer
  • Find the value of b if side a measures 8.7 cm?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!