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
Mazyrski [523]
3 years ago
10

A chemist wishes to mix a 30% acid solution with a 65% acid solution to obtain 175 quarts of 55% acid solution . How many quarts

of each solution should be mixed toguether?
Mathematics
1 answer:
Eva8 [605]3 years ago
7 0

x = quarts of 30% acid solution

y = quarts of 65% solution

x + y = 175

Each quart of the 30% solution contributes 0.30x quarts of acid; similarly, each quart of the 65% solution contributes 0.65y quarts of acid. So

0.3x + 0.65y = 0.55*175 = 96.25

That is, the chemist wants 175 quarts of a new mixture with a 55% concentration of acid, which comes out to 95.25 total quarts of acid. The total amounts of acid from either sides of this equation must balance out.

Now solve for x and y:

x + y = 175  ==>  y = 175 - x

0.3x + 0.65y = 96.25  ==>  0.3x + 0.65(175 - x) = 96.25

==>  0.3x + 113.75 - 0.65x = 96.25

==>  17.5 = 0.35x

==>  x = 50  ==>  y = 125

You might be interested in
PLEASE HURRY ITS TIMED!!!
irina1246 [14]

Answer:

The correct answer is A)

PRISM.  

Explanation:

Any 2-dimensional shape formed with straight lines is a polygon. Examples of polygons are:

  1. Quadrilaterals
  2. Hexagons
  3. Pentagons, and
  4. Triangles are all examples of polygons. The name of polygons are usually indicative of the number of sides they have.

Cheers!

5 0
3 years ago
Ben rolls a number cube 50 times. He records the result of each roll in the table below.
jek_recluse [69]

Answer:

picture ?

Step-by-step explanation:

7 0
2 years ago
ILL GIVE BRAINLY THIS IS THE WHILE QUESTION I FORGOT TO ADD THIS
Ne4ueva [31]
B. Situation A
C. Situation B

Explanation: Situation A has more students on the higher numbers.

Second Explanation: Situation B has numbers on the 70.
3 0
2 years ago
Percy is filling a cylindrical tank with water. The tank is
Archy [21]

Answer:

B

Step-by-step explanation:

78x9=702

702/6=117 minutes.

7 0
3 years ago
Read 2 more answers
Find the slope of the line: (4, 4), (5, 3)
fredd [130]

Answer:

-1

Step-by-step explanation:

we would use the slope formula which is y2-y2/x2-x1

so 3-4/5-4= -1

8 0
2 years ago
Other questions:
  • In the​ 2009-2010 school year in country​ a, there were 117 comma 000117,000 foreign students from country
    12·1 answer
  • A window washer charges $50 for a house call and another $10 per window washed.
    13·2 answers
  • Tri-Cities Bank has a single drive-in teller window. On Friday mornings, customers arrive at the drive-in window randomly, follo
    15·1 answer
  • Find the sum of the first 35 terms in this geometric series <br><br> 8 - 12 + 18
    5·1 answer
  • Sal had a board 5/6 yard in length.He cut off 1/3 yard,and then cut what remained into pieces each 1/6 yard long.How many pieces
    12·1 answer
  • 1. Make up two equations, one that is true and one that is false. Do not state which equation is true and which is false. Your c
    7·2 answers
  • Emily has a coin with P(H) = pi and Pete has a coin with P(H) = P2. Emily tosses her coin n times, and denote the number of head
    8·1 answer
  • 2 Points
    6·1 answer
  • 3x + 25 = 2 - (6x — 15) solve for x
    5·1 answer
  • 2/5x+1/4x=26 what is x
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!