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
Elis [28]
3 years ago
14

A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is

  70%salt and Solution B is 95% salt.She wants to obtain 110 ounces of a mixture that is 80% salt. How many ounces of each solution should she use?
Mathematics
2 answers:
Bad White [126]3 years ago
7 0

Answer:

66 ounces 70% salt solution and of 44 ounces of 95% salt solution

Step-by-step explanation:

Let x = volume needed of 70% salt solution.

Let y = volume needed of 95% salt solution.

Total needed: 110 ounces of 80% salt solution.

Equation of total volumes:

x + y = 110    Equation 1

Equation of percentages of salt:

0.7x + 0.95y = 0.8(110)

0.7x + 0.95y = 88     Equation 2

Multiply both sides of equation 1 by -0.7; write equation 2 below it and add the equations.

       -0.7x - 0.7y = -77

(+)   0.7x + 0.95y = 88

--------------------------------

                  0.25y = 11

y = 44

x + y = 110

x + 44 = 110

x = 66

Answer: 66 ounces 70% salt solution and of 44 ounces of 95% salt solution

Yuri [45]3 years ago
4 0

Answer:

x= 44 ounces y = 66 ounces  

Step-by-step explanation:

Distribution would be an increase to find 80% salt.

Where we use 4/5 = 80 but use here 4/5.

We find 19/20 but just say 95 for solution B =

Let x = the number of ounces of Solution A

Let y = the number of ounces of Solution B

x + y = 110        y = 110 - x

(70x + 95y) = 4/5 x 110

70x + 95y = 88    

70x + 95 y = 88

70x + 95 (88 - x) = 8800 make units equal or for start convert decimalization = same units as 2nd multiplied value.

70x + 8360 - 88x = 8800

-10x - 8360 - 8800 = y

-10x = 440

x = 44 ounces

y = 110- 44

y =  66 ounces  

You might be interested in
EXPLAIN:
Arlecino [84]

Answer

is there a picture

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Can someone help me with 7 1/2 ÷ 1 9/10 please and thank you
Evgen [1.6K]
7 1/2÷ 1 9/10 = 15/2 ÷19/10 = 15/2x10/19 = 159/38 = 4 7/38


4 7/38 (Answer)
_____
38 )159
152
__________
4 0
2 years ago
Read 2 more answers
Find the circumference of the circle.<br> 7 m
Nutka1998 [239]

Answer:

43.96m is the answer

Step-by-step explanation:

circumference of circle=2πr

=2*3.14*7

=43.96m

8 0
2 years ago
For some reason my teacher gave this to us and I kinda forgot how to do this from last year... please helppp w/ work or she’s go
WARRIOR [948]
The greatest common factor is...
5a
I got this by...
10: 1,2,5,10
15: 1,3,5,15
25: 1,5,25
The GCF is 5 for the numbers.
For the a's, it's...
a: a
a^3: a×a×a
a^6: a×a×a×a×a×a
The GFC is a.
Then multiple 5 and a, and you get...
5a
The GFC is...
5a
Hope this helps!
8 0
3 years ago
Find the midpoint and distance on a number line between 6, -15
SCORPION-xisa [38]
So it is distance from zero so 6+15=21

1 2 3 4 5 6 7 8 9 10 (11) 12 13 14 15 16 17 18 19 20 21
eliminate one from each side till you find the middle
7 0
3 years ago
Other questions:
  • The vista marina rents boats for $25 per hour in addition to the rental fee there is a $12 charge for fuel.Use a table to determ
    14·1 answer
  • Using three or more complete sentences, describe a unitary government system.
    7·1 answer
  • What forms do the equations of motion for an idealized string take if either (a) the linear density varies with position, or (b)
    11·1 answer
  • A spinner is separated into 5 equal pieces, as shown below: A spinner is shown with five colors, brown, blue, purple, orange and
    9·2 answers
  • Carlos went to buy a television the same size as his friend’s. When he got to the store, he found that televisions are measured
    9·2 answers
  • Please help, due soon. show work for the problem
    12·1 answer
  • Lily begins solving the equation 4(x-1)-x=3(x+5)-11. Her work is shown below. 4(x-1) - x = 3 (x+5)-11 4x −4) −x =3x +15 −11 3x-4
    13·1 answer
  • Which number line shows the solution to the inequality -3x - 5 &lt; -2 ?
    6·1 answer
  • If $2,500 is deposited into a new account that earns 2% interest compounded quarterly and there are no other deposits or withdra
    12·1 answer
  • What is the answer I need help!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!