2 years ago

What is the final concentration if a saline solution consisting of 20% NaCl is diluted using a 1/4 solution?

Mathematics

1 answer:

vodomira [7]2 years ago

6 0

Answer: C.V=C1.V1 +C2.V2

Step-by-step explanation: C=(C1V1 + C2V2)/V -> C=(20%.V+25%V)/2V-> C=22,5%

You might be interested in

What’s the correct answer?

Sidana [21]

Convert 91% to a decimal:

$91 \div 100 = 0.91$

Multiply the amount of people by this decimal:

$1989 \times 0.91 = 1809.99$

Round the number to the nearest ones value:

1809.99

9 > 5

1809.99 -> 1810

1,810 people have reached the top of Mount Everest.

6 0

2 years ago

Read 2 more answers

A transformation translates the point S (-1,1) down 2 units and right 3 units. What rule describes this translation. A. (x,y)=(x

allochka39001 [22]

The answer is D (x+3,y-2)

4 0

2 years ago

Nobcfgfcxfcgvhfhgvfhgv

Inga [223]

Answer:

Step-by-step explanation:

lovely

4 0

2 years ago

Read 2 more answers

Evaluate k(4) for the function k(x)=18−2x

KiRa [710]

Answer:

k(4) = 10

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

k(x) = 18 - 2x

k(4) is x = 4

Step 2: Evaluate

Substitute in x: k(4) = 18 - 2(4)
Multiply: k(4) = 18 - 8
Subtract: k(4) = 10

5 0

2 years ago

Which explicit formula is equivalent to ? WILL GIVE BRAINLEST

podryga [215]

Answer:

c i think

Step-by-step explanation:

if im wrong a if its geometric and c if its arithmetic

4 0

2 years ago