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
In-s [12.5K]
2 years ago
15

You need a 35% alcohol solution. On hand, you have a 715 mL of a 20% alcohol mixture. You also have 90% alcohol mixture. How muc

h of the 90% mixture will you need to add to obtain the desired solution?
Mathematics
2 answers:
anyanavicka [17]2 years ago
8 0
You will need 90% to obtain the desired 75%
asambeis [7]2 years ago
6 0

Answer:

90% Solution

Step-by-step explanation:

5% of 90 + 90% of x = 75% of (90 + x)

5×90/100 + 90x/100 = 75×90/100 + 75x/100

Or 90x/100 - 75x/100 = 75×90/100 - 5×90/100

Or 15x/100 = 90×70/100

Or X = 420ml

You Will Need ML Of The 90% Solution To Obtain ML Of The Desired 75% Solution.

You might be interested in
Identify the area of ⊙K in terms of π. SHOW YOUR WORK, PLEASE!!
Maru [420]

The formula for area of a circle is π x r^2

r = radius = 7 cm.

Area = 7^2 x π

Area = 49π cm²

5 0
3 years ago
What is the area of the figure?
kap26 [50]

Answer:

3400

Step-by-step explanation:

60 * 70 = 4200

70 - 10 - 20 = 40

20 * 40 = 800

4200 - 800 = 3400

5 0
3 years ago
Read 2 more answers
Can someone please help me solve these two quadratic equations by factoring!
snow_tiger [21]

Answer:

1st one: (x-2)(x+10)

2nd one: (x-7)(x-3)

Step-by-step explanation:

6 0
2 years ago
An example of coefficient math problem
spayn [35]
The number that is being multiplied by the variable ( the letter) so like if you have 2X the 2 is the coefficient
8 0
3 years ago
8/25 x 7/8 Please help guys I am almost done with this paper and I am tired
Oduvanchick [21]
Hopes this helps:

Answer: 7/25

1. Cancel 8.

1/25 • 7

2. Simplify.

7/25
4 0
2 years ago
Other questions:
  • THe experimental probability that Jessica will hit the ball when she is at bat is 2/5. IF she is at bat 75 times in a season, ho
    14·1 answer
  • Why is math important in our daily life?
    12·1 answer
  • Algebra One!:(FILL IN THE BLANKS!!!PLS
    12·1 answer
  • 14 minus 48 plus 93 divided by -95​
    8·1 answer
  • Tia owns a fruit shop and is selling a fresh lot of apples and oranges. She wants the ratio of apples to oranges sold to be 4 to
    13·1 answer
  • Find three consecutive numbers whose sum equals<br>999.​
    10·1 answer
  • Please help me with this!!
    11·1 answer
  • Find the volume of a right circular cone that has a height of 12.7 m and a base with a circumference of 18.9 m. Round your answe
    9·1 answer
  • list the first three whole numbers greater than 50 that will have a remainder of 7 when you divide by 9
    15·1 answer
  • The tree diagram shows Leila's choices for dinner at a restaurant. How many possible dinner combinations exist?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!