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
Naddika [18.5K]
3 years ago
10

If a 7% saline solution and a 4% saline solution are mixed to make 500 milliliters of a 5% saline solution, how much of each sol

ution, to the nearest milliliter, is needed?
Mathematics
1 answer:
Bogdan [553]3 years ago
3 0
 <span>The answer is 167 milliliters of 7% solution and 333 milliliters of 4% solution x + y = 500 x = 500 - y 0.07x + 0.04y = 25 (substitute 500 - y for x) 0.07(500 - y) + 0.04y = 25 35 - 0.07y + 0.04y = 25 -0.03y + 35 = 25 -0.03y = -10 y = 333.333... y [ = about 333 x = 500 - y = 500 - 333 = 167 hope it helps </span>
You might be interested in
Use the long division method to find the result when 6x3 + 19x2 + 10x + 1 is<br> divided by 2x + 1.
galina1969 [7]

Answer:

Hope this answer helps you !

3 0
2 years ago
Please help I’m struggling
Ivenika [448]

Answer:

ok

Step-by-step explanation:

HAHAHAHAHAHAHAHHAHAHHAHAA

3 0
3 years ago
Tina has a doll which she can dress with a hat, a scarf and a jacket.
ad-work [718]

Answer:

60 combinations

Step-by-step explanation:

3 × 4 × 5 = 60

Hope i helped!

8 0
3 years ago
Triangle ABC has perimeter 22 cm.
Vilka [71]

Answer: yes it is a right angle triangle

Step-by-step explanation:

a^2 + b^2 = c^2

8^2+ 5^2 = ?

64 + 25 = square root of 89

square root of 89 = 9.4

when we round 9.4 it is 9

so

22- (8+5) =

22 - 13 = 9

so our answer is correct

7 0
3 years ago
Read 2 more answers
7. In the accompanying diagram of right triangle ABC, altitude BD divides hypotenuse
xxMikexx [17]

Answer:

A.

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • When the following expression is written in simplest form, what is the coefficient of the variable term? -2.5y + 8y - 10.5y...ch
    10·2 answers
  • What are equivelent froctions of. 7/12
    6·2 answers
  • what pair of numbers with a sum of 15 has the greatest product? What pair has the least positive product?
    12·1 answer
  • A population of values has a normal distribution with μ = 155.4 and σ = 49.5 . You intend to draw a random sample of size n = 24
    6·2 answers
  • A publishing company is going to have 24,000 books printed. There are between 3 and 4 books out of ever 3,000 that will have a p
    13·1 answer
  • How can I solve this polynomial (x^4+4x^3-x-4)/(x^3-1)
    6·1 answer
  • Enter the value of P so that the expression 4(10+n) is equivalent to 4(n+p)
    11·2 answers
  • (-1 + 5i) + (-2 - 3i)
    8·1 answer
  • I need help: number 19
    7·1 answer
  • Tara's pool is 50 yards in length and 20 feet in width. How many square feet is the pool? How many square yards in the pool? Sho
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!