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
Thepotemich [5.8K]
3 years ago
6

The costs of Brand A and Brand B coffee beans are $400/kg and

Mathematics
1 answer:
Aneli [31]3 years ago
3 0

Answer:

The ratio of x:y is 1/2

Step-by-step explanation:

Let

x----> the number of Kg of brand A

y ---> the number of Kg of brand B

we know that

400x+280y=320(x+y)

400x+280y=320x+320y

400x-320x=320y-280y

80x=40y

x/y=40/80

x/y=1/2

You might be interested in
Write $2.161616 as a fraction and mixed number
Alona [7]
Fraction is 2.161616/1000000
mixed number is 2 161616/1000000
4 0
3 years ago
95. Because atoms, molecules, and ions are very small, they are counted in units of moles, where 1 mole = 6.022 × 1023 molecules
Galina-37 [17]

Answer:

There are 10⁻⁷ hydrogen ions in one-liter water

Step-by-step explanation:

Hi there!

a. If the pH = 7.0, then:

-log(H) = 7.0

multiply both sides of the equation  by -1

log(H) = -7.0

Apply 10ˣ to both sides

10^(log (H)) = 10⁻⁷

(H) = 10⁻⁷

There are 10⁻⁷ hydrogen ions in one-liter water.

Why 10^(log (H)) = (H)?

Let´s consider this function:

y = 10^(log x)

(Apply log to both sides)

log y = log 10^(log x)

(Apply logarithmic property: log xᵃ = a · log x)

log y = log x · log 10

(log 10 = 1)

log y = log x

y = x

(since y =  10^(log x) and y = x):

10^(log x) = x

That´s why 10^(log (H)) = (H)

7 0
3 years ago
Plz help!!!! Need quick. 65 points
DanielleElmas [232]

Answer:

The area of the mat is 2/3 m^2

Step-by-step explanation:

Area of a rectangle is length times width or

A = l x w

8/9 x 3/4 =

24/36 =

2/3

4 0
3 years ago
Read 2 more answers
Find the sum of the angle measures:<br> MZDEB + m2AEC
Alex_Xolod [135]

Answer:

i don't know

Step-by-step explanation:

you confused me

6 0
3 years ago
Write two numbers that multiply to the value on top and add to the value on bottom.
Marizza181 [45]

Answer:

2?

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • 120% of x is equal to 78.
    9·1 answer
  • Joey works 20 hours a week. If he works for 10 months continually, how many hours will he have worked? (1 month = 4 weeks)
    15·1 answer
  • Which type of study best describes the following research most likely to be done? A researcher is testing put a new type of safe
    10·2 answers
  • rectangle A has a length of 24 meters and a width of 20 meters. rectangle B has the same area as rectangle A. the width of recta
    10·1 answer
  • The Kroger Company is one of the largest grocery retailers in the United States, over 2000 grocery stores across the country. Kr
    15·1 answer
  • Which option/bubble is it??
    8·1 answer
  • Write an equation to represent the following statement 29 is 6 more than K solve for K<br><br> K =
    15·1 answer
  • Type​ A, type​ B, and type C lightbulbs are lasting longer today than ever before. On​ average, the number of bulb hours for a t
    11·1 answer
  • Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre
    8·1 answer
  • Evaluate the expression if m = – 4, n = 1, p = 2, q = –6, r = 5, and t = -2.<br><br> |3r + 6m
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!