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
dangina [55]
3 years ago
6

An education center offers a total of 400 math, physics and

Mathematics
1 answer:
Vikentia [17]3 years ago
8 0

Answer: 30

Step-by-step explanation:

3+4+3=10 400/10=40 so each has 40 so math has 120 120*25=3000 for physics is 4*40 so 160 160*20=3200 9800-3000-3200=3600 3*40=120 3600/120=30

You might be interested in
Who’s graph show a proportional relationship in which the value of y is one-half of the value of x
Sunny_sXe [5.5K]

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

so

That means it's the equation of a line passing through the origin.

case a) and case d) are discarded because the line does not pass through the origin

<u>case b) we have</u>

for x=2 y=4

y/x=k-------> 4/2=2------> k=2

y=2x-------> in this case the value of y is two times the value of x

<u>case c) we have</u>

for x=4 y=2

y/x=k-------> 2/4=1/2------> k=(1/2)

y=(1/2)x-------> in this case the value of y is one-half of the value of x

therefore

the solution is the case c) see the attached figure

8 0
3 years ago
The bargain shows a company‘s income and expenses over the last five years. Which team is supported by the information in the gr
koban [17]

Check the picture below.

4 0
3 years ago
What the length of a diagonal of a square with perimeter of 16
Vladimir79 [104]
A- the length of the side of a square
P = 16

P = 4a → 4a = 16  |:4 → a = 4

The diagonal of the square: d = a√2

therefore d = 4√2


4 0
3 years ago
(-3/2)x - 9 = - 27 solve for x
aleksklad [387]

Answer:

x = 12

Step-by-step explanation:

Solve for x:

(-3 x)/2 - 9 = -27

Put each term in (-3 x)/2 - 9 over the common denominator 2: (-3 x)/2 - 9 = (-18)/2 - (3 x)/2:

(-18)/2 - (3 x)/2 = -27

(-18)/2 - (3 x)/2 = (-3 x - 18)/2:

(-3 x - 18)/2 = -27

Multiply both sides of (-3 x - 18)/2 = -27 by 2:

(2 (-3 x - 18))/2 = -27×2

(2 (-3 x - 18))/2 = 2/2×(-3 x - 18) = -3 x - 18:

-3 x - 18 = -27×2

2 (-27) = -54:

-3 x - 18 = -54

Add 18 to both sides:

(18 - 18) - 3 x = 18 - 54

18 - 18 = 0:

-3 x = 18 - 54

18 - 54 = -36:

-3 x = -36

Divide both sides of -3 x = -36 by -3:

(-3 x)/(-3) = (-36)/(-3)

(-3)/(-3) = 1:

x = (-36)/(-3)

The gcd of -36 and -3 is -3, so (-36)/(-3) = (-3×12)/(-3×1) = (-3)/(-3)×12 = 12:

Answer:  x = 12

3 0
3 years ago
I need help please and thank you
Amanda [17]

Answer:

-2,400

Step-by-step explanation:

since they are in parentheses u multiple them together. a positive number × a negative number is a negative number.

8 0
3 years ago
Read 2 more answers
Other questions:
  • A box (with no top) is to be constructed from a piece of cardboard of sides a and b by cutting out squares of length h from the
    11·1 answer
  • Which is the solution set of 18 - 3n + 2 = n + 20 - 4n Ф 0 all reals
    5·1 answer
  • Nadia selects three marbles from the jar to the right without replacing them. What is the probability that all three marbles are
    8·1 answer
  • An arithmetic sequence has first term 25 and common difference 3. Find the 50th
    13·1 answer
  • The graph below compares plant height to the age of the plant, in weeks.
    11·2 answers
  • A cyclist rides her bike at a rate of 21 kilometers per hour. What is this rate in kilometers per minute? How many kilometers
    14·1 answer
  • A=6b solve for b please​
    6·1 answer
  • 30 POINTS PLEASE HELP Solve 2 (e)^3t =10 for t. Round to three decimal places
    10·1 answer
  • Corey drew the following graph for the equation y=1/3x-1
    8·1 answer
  • 50 POINTS
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!