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
olga nikolaevna [1]
3 years ago
10

How much water should be added to 180 liters of a 25% saline solution to make an 18% saline solution?​

Mathematics
1 answer:
marin [14]3 years ago
3 0

Answer:

it should be 14 liters if it's not I'm sorry

You might be interested in
What is an ecosystem?
Phoenix [80]

Answer:

4

Step-by-step explanation:

8 0
3 years ago
Which is the simplified form of the expression?
Scorpion4ik [409]

Answer:

1 / q^30.

Step-by-step explanation:

[(p^2)(q^5)]^-4 * [(p^-4)(q^5)]^-2

Using the law (a^b)^c =  a^bc :-

=  p^-8 * q^-20 * p^8 * q^-10

= p^(-8+8) * q^(-20-10)

= p^0 * q^-30

= 1 * q^-30.

= 1 / q^30.

8 0
3 years ago
A) Model this situation with a linear system:
sergejj [24]

Answer:

The daily rate is $ 29 and the fee for each kilometer driven is $ 0.35.

Step-by-step explanation:

Since to rent a car, a person is charged a daily rate and a fee for each kilometer driven, and when Chena rented a car for 6 days and drove 320 km, the charge was $ 286.00, while when she rented the same car for 10 days and drove 900 km, the charge was $ 605.00, to determine the daily rate and the fee for each kilometer driven the following calculation must be performed:

286 = 6 days and 320 km

320/6 = 53,333 km

286/6 = $ 47,666

Thus, the value of 1 day and 53,333 km is $ 47,666.

605 = 10 days and 900 km

900/10 = 90 km

605/10 = $ 60.5

Thus, the value of 1 day and 90 km is $ 60.5.

90 - 53,333 = 36,666

60.5 - 47.666 = 12.833

12,833 / 36,666 = value per kilometer traveled

0.35 = value per kilometer traveled

(286 - (0.35 x 320)) / 6 = X

(286/112) / 6 = X

174/6 = X

29 = X

(605 - (0.35 x 900)) / 10 = X

(605 - 315) / 10 = X

290/10 = X

29 = X

Therefore, the daily rate is $ 29 and the fee for each kilometer driven is $ 0.35.

3 0
3 years ago
Find the distance between the points (4,-3) and (5,1)<br> Distance =
Serggg [28]

Answer:

d = sqrt(17)

Step-by-step explanation:

d = sqrt( x2 - x1)^2 + (y2 - y1)^2  )

d = sqrt( (4 - 5)^2 + (-3 - 1)^2 )

d = sqrt( (-1)^2 + (-4)^2  )

d = sqrt ( 1 + 16)

d = sqrt(17)

6 0
3 years ago
The table below shows the surface area y in square inches, of a shrinking puddle in x hours
Kruka [31]
Part A
Correlation coefficient: -.99
This tells us that as time goes on (value of x increases) the area of the puddle goes down (value of y decreases)

Part B
y₂ - y₁
-------   = slope
x₂ - x₁
9 - 15
--------
5 - 8
-6/-3 = 2
So the slope equals -2, regardless of the fact that we got 2 as an answer there, we know that it is a negative slope 

Part C
The data represents causation because an increase in the value of x results in a decrease in the value of y, this shows an example of direct causation between x and y.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Linear or Nonlinear for each function. Function Linear Nonlinear y =5x+1 y=23 y=1−2x2
    10·1 answer
  • A triangle with all sides of equal length is a ------ triangle
    11·2 answers
  • A farmer has 133 sheep.47 of them are male.How many more female than the male?
    9·2 answers
  • Does anyone know how to do 16 a and b?!?!?! WILL GIVE BRAINLIEST!!! need this asap!!!!
    9·2 answers
  • 1
    14·1 answer
  • Use synthetic division to find the result when 2x4 – 1423 + 16x2 – 19x - 30 is
    10·1 answer
  • ,.........................
    8·1 answer
  • 2,000.h for h = 0.004<br> 2,000 h =
    10·1 answer
  • Which expression is equivalent to 2 x + 4 ?
    14·1 answer
  • A cereal box measures 2 inches by 8 inches by 12 inches. It is cut out from a piece of cardboard that measures 600 square inches
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!