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
A
Evgesh-ka [11]
The answer will end up being c
6 0
4 years ago
Arc MNP equals 126. O is the center. Find angle MOP
Paha777 [63]
We know that

the angle MOP is equal to arc MNP because is a central angle

the answer is 
angle MOP=126°
3 0
3 years ago
Write the equation –3x + 2y = 7 in slope-intercept form.
ira [324]
Y=mx+b is the slope formula

5 0
3 years ago
You decide to go to dinner with three friends. Before the check comes, the group decides to split the check evenly. The total
NeX [460]

Answer:

You each will pay $40.35

Step-by-step explanation:

First you take the total  $134.50 and divide it by 4 which is you and your three friends.

This will give you 33.625 which is the amount each of you will pay without tip.

To find the tip you take 20% from $134.50 which will give you 26.9 and when you divide that by the four of you it will give you 6.725.

Then you take your amount 33.625 plus your tip 6.725 which will give you $40.35.

The total you all will pay will be $161.40 this is the total $134.50 plus the tip $26.90.

Hope this helped.

4 0
2 years ago
A pizza is cut into twelve pieces. Describe the steps you would take to find the area of one slice of the pizza.
DanielleElmas [232]
Hey there!

First, you would need to find the area of the circle/pizza . . .

Formula of finding area → pi*r²  (Pi * the radius of the circle/pizza²)
---
Once you have found the area, you would need to divide the result by the number 12 since there is a total of 12 slices in the pizza.
---
This is how you would find the area of one slice of pizza.
__________________
I hope this helps you.
Have a great day! :)
5 0
3 years ago
Other questions:
  • Jeanine Baker makes floral arrangements. She has 10 different cut flowers and plans to use 6 of them. How many different selecti
    12·1 answer
  • A publisher claims that the average salary paid at its company is $37,500 but it could differ as much as $4,500. Write and solve
    9·1 answer
  • What is 2 times y in an algebraic expression I need help
    12·2 answers
  • Select the rational expression that is equivalent to the given expression below. 4/x-3
    13·2 answers
  • Triangles A B C and X Y Z are shown. Angles A C B and X Z Y are right angles. The length of X Y is 10, the length of Y Z is 6, a
    9·2 answers
  • What is the quotient of 2/3 divided into 1/5?
    13·1 answer
  • The endpoints of a diameter of a circle are (2, 4) and (-4, 7).
    9·1 answer
  • (x - 3)(2x + 1)(Ax + 1) = 8x? + Bx? + Cx - 3
    12·1 answer
  • 3 points
    14·2 answers
  • 5.93x0.85 slove the answer for me
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!