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
Over [174]
2 years ago
7

George wishes to increase the percent of acid in 50 ml of a 15% acid solution in water

Mathematics
2 answers:
PtichkaEL [24]2 years ago
3 0

Answer:

screw this question

Step-by-step explanation:

To change from 15% to 25% he needs to add 10%.

If the solution is 50ml then he needs to add 10% which is 5ml... But if he adds 5 ml then the solution will be 55ml total, so that doesn't make sense. He has to take some of the solution that's not acid before adding the 5ml...

sammy [17]2 years ago
3 0

Answer:

20/3 ml

Step-by-step explanation:

Original solution volume is 50ml out of which 15% is acid

Vol of acid in solution = 15% x 50 = 7.5 ml

Let's add X ml of acid to solution so that acid % is 25%

New acid volume = X + 7.5

New solution volume = X + 50

Using ratio of acid/solution gives us (X+7.5)/(X+50) = 25/100

or,

(X + 7.5)/(X+50) = 1/4

Cross-multiplying

4(X+7.5) = X + 50

4X + 30 = X + 50

3X = 20

X = 20/3  ANS

You might be interested in
Sin 31 / 2 cos 59<br>evatuate with out using table​
xxTIMURxx [149]

Answer:

Find the exact value using trigonometric identities.

0.13763793

8 0
3 years ago
Zoey solved the calculation 5 + 3.89 using a decimal number line. The decimal number line shows how Zoey calculated the answer.
IceJOKER [234]
Start at the point 0
Then move 5 points right because 5 is positive
The another 3.89 points right because your adding a positive number
Sooo 5 + 3.89 = 8.89

Hope this helps :D
4 0
3 years ago
What's the difference between partial variation and direct variation​
shepuryov [24]

Answer:

<u>Direct Variation is a relation that is of the form y = mx.</u>

and

<u>Partial Variation is a relation that is of the form y=mx+b</u>

Explanation:

This is a simple way to see the difference between them.

<em>Hope This help you!</em>

8 0
3 years ago
I really need help with this FAST PLEASE!!!!!
Evgen [1.6K]
It is 1 and - 3 so b yeah
8 0
3 years ago
Read 2 more answers
I NEED HELP WORTH THIS there is one more option of 6,6 also
grigory [225]

Answer:

C. (2,4)

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Alex usually runs for 21 hours a week, training for a marathon. if he is unable to run for 3 days, describe how to find out how
    11·1 answer
  • Finding the length of NM?
    11·1 answer
  • Find a ordered pair to represent a in the equation a=b+c if b= (6,3) and c =(-4,8)
    8·1 answer
  • Write an equation for the sum of the measures of the two right angles
    13·1 answer
  • Can someone tell me the workout and the answer i the picture?
    11·1 answer
  • What is the area of a square whose diagonal is 4?<br><br> A. 8<br> B.32<br> C.36<br> D.64
    14·2 answers
  • This graph shows how the length of time a canoe is rented is related to the rental cost. What is the rate of change shown in the
    5·1 answer
  • 17. Reasoning The interest rate on a credit
    12·1 answer
  • Atraeus is solving the quadratic equation by completing the square.
    10·2 answers
  • What is the product of 4(8x + 5).
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!