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
Nutka1998 [239]
3 years ago
14

If someone could help me with it would be greatly appreciated. A scientist has two solutions, which she has labeled Solution A a

nd Solution B. Each contains salt. She knows that Solution A is 60% salt and Solution B is 85% salt. She wants to obtain 40 ounces of a mixture that is 70% salt. How many ounces of each solution should she use?
Mathematics
1 answer:
Talja [164]3 years ago
7 0

Answer:

16 for Sol A and 24 for Sol B

Step-by-step explanation:

Let x = the number of ounces of Solution A

Let y = the number of ounces of Solution B

x + y = 40        y = 40 - x

.60x + .85y = .75(40)

.60x + .85y = 30      Multiply both sides of the equation by 100 to remove the decimal points.

60x + 85y = 3000

60x + 85(40 - x) = 3000

60x + 3400 - 85x = 3000

-25x = -400

x = 16 ounces

y = 40 - 16

y = 24 ounces          

You might be interested in
Y = -3x + 1 <br> What is the y-intercept?
svetlana [45]

The y-intercept will be 1

4 0
3 years ago
Read 2 more answers
Expression equivalent to 3n + 2(1-4n)
yuradex [85]
You can first distribute the number into the parenthesis: 3n + 2 - 8n. Now, combine the like terms (n): -5n + 2. It can either be -5n + 2 or 2 - 5n.
7 0
3 years ago
What is the relationship?
Studentka2010 [4]
What do you think and what have you previously learned on the subject?
8 0
3 years ago
Which of the following is an equation of the line that passes through the point (2, 2) and is parallel to the graph of the equat
pickupchik [31]

Answer:

B

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 3x - 1 ← is in slope- intercept form

with slope m = 3

Parallel lines have equal slopes, thus

y = 3x + c ← is the partial equation of the parallel line

To find c substitute (2, 2) into the partial equation

2 = 6 + c ⇒ c = 2 - 6 = - 4

y = 3x - 4 → B

4 0
3 years ago
Read 2 more answers
Solve for a<br>-7=-ax-16​
Rudik [331]

Answer:

x=-9/a and a=-9/x

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • The equation y = 3.5x represents the rate, in miles
    15·2 answers
  • Which expression below gives the average rate of change of the function g(x)= -x^2 -4x on the interval 6 ≤ x ≤ 8?
    7·1 answer
  • What are the factors of 24 and 40
    7·2 answers
  • True or false the product of a mixed number between four and five and affection between zero and one is always less than four
    5·2 answers
  • Does anyone understand this? show work please. thank you.
    6·2 answers
  • I'm so sorry for asking about this, I know I know how to solve this, but my mind keeps pulling a blank, please help!
    10·1 answer
  • Find K if x + 1 is a factor of P(x) = Kx^2-x+2
    14·1 answer
  • Which angle is larger?​
    14·1 answer
  • Can someone answer my question please ? (see my profile to see questions )
    6·1 answer
  • A person who weighs 200 pounds on Earth would weigh about 32 pounds on the moon. Find the weight of a person on Earth who would
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!