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
olasank [31]
3 years ago
14

Sandra needs to make 500 L hand sanitizer with 75% alcoholic solution. He has only two of the alcoholic solutions available, a 6

5% solution and a 90% solution. How many litres of each alcoholic solution should he mix?
Mathematics
1 answer:
shtirl [24]3 years ago
8 0

If Sandra mixes <em>x</em> L of 65% solution with <em>y</em> L of 90% solution, then the resulting mixture has a total volume of

<em>x</em> + <em>y</em> = 500

litres, and it contains

0.65<em>x</em> + 0.90<em>y</em> = 0.75 (500) = 375

litres of alcohol.

Solve the first equation for <em>y</em> :

<em>y</em> = 500 - <em>x</em>

<em />

Substitute this into the second equation and solve for <em>x</em> :

0.65<em>x</em> + 0.90 (500 - <em>x</em>) = 375

0.65<em>x</em> + 450 - 0.90<em>x</em> = 375

75 = 0.25<em>x</em>

<em>x</em> = 300

Solve for <em>y</em> :

<em>y</em> = 500 - 300

<em>y</em> = 200

So, Sandra should mix 300 L of 65% solution with 200 L of 90% solution.

You might be interested in
Solve for x<br> 29=4x-11
Gemiola [76]
The correct answer for this would be X=10
3 0
2 years ago
Read 2 more answers
What best represents an elevation of 0 feet
tamaranim1 [39]
If this is in science terms its a plain if this is in mathematical terms, the answer is the number 0 anything below is negative, anything abouve is pos
5 0
3 years ago
Read 2 more answers
A man bought 5 laptops and a desktop for taka 229600. If a laptop costs taka 32750 find the cost of the desktop
Anton [14]

One laptop costs 32,750.

He bought 5 laptops.

So, 5 x 32,750 = 163,750.

Let d = cost of one desktop.

163,750 + d = 229,600.

Solve for d to find your answer.

6 0
2 years ago
What is a common factor for the two fractional terms StartFraction 5 over 8 EndFraction x andStartFraction 11 over 8 EndFraction
Dafna1 [17]

Answer:

\frac{1}{8x}

Step-by-step explanation:

Given two fractional terms \frac{5}{8x}\ and\ \frac{11}{8xy}. Their common factor is a value or function that can go in both fractional terms. The terms can be written as shown.

\frac{5}{8x} = 5 *\frac{1}{8x}

\frac{11}{8xy} = 11 * \frac{1}{8x} * \frac{1}{y}

It can be seen from the both equations that they both have \frac{1}{8x} as one of their factors i.e <em>1/8x is common to both fractional terms</em>. This gives the common factor for the two fractional terms as \frac{1}{8x}

4 0
3 years ago
Read 2 more answers
Function or no a function
marishachu [46]

Answer:

Not a function

Step-by-step explanation:

If it was a function there should be only one values for every x, in this case there is two values for x=0. Doesn't pass the vertical test.

7 0
2 years ago
Read 2 more answers
Other questions:
  • Find the 7th term of the geometric sequence with the given terms. a4 = -8 and a5 = -40; a7 = _______.
    8·1 answer
  • 3.A prop for the theater club’s play is constructed as a cone topped with a half-sphere. What is the volume of the prop? Round y
    10·1 answer
  • The number of hours it takes Jack to drive from Boston to Bangor is inversely proportional to his average driving speed. When he
    13·1 answer
  • (Best answer gets brainliest, Good answers get 5 stars, all answers get thanks.)
    8·2 answers
  • 13) In the proof: STATEMENT: Z1 = Z2 REASON: 13)
    13·1 answer
  • Can 4,5,6 form any triangle
    6·1 answer
  • I DONT HAVE MUCH TIME TO SUBMIT THIS CAN ANYONE HELP!?!
    12·1 answer
  • HELP ILL GIVE BRAINLIEST
    8·1 answer
  • If LM = 7 and LN 7 and LN = 18, what is MN?​
    10·1 answer
  • Pls explain and provide calculation thank you
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!