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
GenaCL600 [577]
3 years ago
6

A lab assistant wants to make 5 liters of 27.2% acid solution. If solutions of 30% and 16% are in stock, how many liters of each

must be mixed to prepare the solution?
Mathematics
1 answer:
pantera1 [17]3 years ago
4 0
Let x = 30% y=16%

We need 5 liters of 27.2% acid
A) x + y = 5
B) .30 x + .16y = 5 * .272
Multiplying A by -.30
A) -.30 x - .30y = -1.5 then adding to B
B) .30 x + .16y = 1.36
-.14y = -.14
y = 1 liter 16%
x = 4 liters 30%




You might be interested in
Describe how the digits shift when you multiply a number by 0.1.
Dafna1 [17]

Answer:

they move one over to the left

Step-by-step explanation:

a zero is added to the number and the decimal is shifted


3 0
3 years ago
A factory's worker productivity is normally distributed. one worker produces an average of 77 units per day with a standard devi
VLD [36.1K]
One worker<span> produces an average of 84 units per </span>day<span> with a street </span>What is the probability<span> that in any </span>single day worker 1 will outproduce worker 2<span>? A) 0.1141.
</span>
Answer, factory worker productivity<span> is </span>normally distributed<span>. </span>One worker produces<span> an </span>average<span> of 75 </span>units per day<span> with a standar, day with a </span>standard deviation<span> of 20. </span>Another worker produces<span> at an </span>average rate<span> of 65 </span><span>per day.

</span>
4 0
3 years ago
List all the prime numbers from 1 to 50
Cloud [144]
Prime numbers from 1 to 50:

2, 3, 5, 7, 11, 13<span>, 17, 19, 23, 29, 31, </span>37,41<span>, </span>43<span>, </span><span>47</span>
4 0
3 years ago
Read 2 more answers
Solve the equation: 7/10 + 1/5
Lynna [10]

Answer:

9/10

Step-by-step explanation:

To solve this, we simply need to find the common denominator, which in this case, is 10

5 x 2 = 20

1/5 = 2/10

7/10 + 2/10 = 9/10

Thus, our answer is 9/10

8 0
3 years ago
Read 2 more answers
What is the gcf for 42n - 27s​
Trava [24]

Answer:

3

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • The sides of an equilateral triangle are 8 units long.what is the length of the altitude of the triangle?
    7·1 answer
  • Refer to the equation 2x _ 6y =12.
    9·1 answer
  • Mary is 5 feet tall and Alice is 1.6 meters tall. Who is taller? By how many inches?
    9·2 answers
  • If x% of 75 = 9, then the value of x is​
    11·1 answer
  • What is 13% of 500 hours
    15·2 answers
  • Can any smart person out there help me with this homework ill pay you i just need it done
    14·1 answer
  • What is the area of polygon ABCDEFGHI in the coordinate plane from the figure below?
    13·1 answer
  • Why do elephants have pointy tails
    11·1 answer
  • Hi can I have help please tysm!
    14·1 answer
  • I will Make you brainiest!!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!