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
tensa zangetsu [6.8K]
2 years ago
14

If 3a +5b =10 and 5a +3b =30 what is the average of a and b?

Mathematics
1 answer:
saw5 [17]2 years ago
6 0

Hello, please consider the following.

3a+5b + 5a + 3b = 8(a+b)=10+30=40\\\\a+b=\dfrac{40}{8}=5

And the average is

\dfrac{a+b}{2}\boxed{=\dfrac{5}{2}}

Thank you.

You might be interested in
‼️‼️10 points‼️‼️
My name is Ann [436]

Answer:

The correct answer is B.

Step-by-step explanation:

There is no clear rule regarding the relationship with these numbers. So it is not linear.

Good Luck!

8 0
2 years ago
Read 2 more answers
PQ has endpoints P(-3,2) and Q(3,-2). Find the coordinates of the midpoint of PQ
hodyreva [135]

Answer:

(0,0)

Step-by-step explanation:

For this, you need to use the midpoint formula.

(-3) + 3                      2 + (-2)

--------------      ,       ----------------

     2                               2

This leads to:

-3 + 3 = 0 -> 0/2

x = 0

3 + (-3) = 0 -> 0/2

The answer is:

(0, 0)

6 0
1 year ago
Which expression is equivalent to5(h+9)
Fantom [35]

Answer:

The answer would be 5h+45

Step-by-step explanation

5 (h+9)

You need to convert this equation into the equation

you multiply 5 by h and get 5h

Then multiply the same number outside the parenthesis, 5, by 9 which will give you the answer 45

Once you have 5h and 45 just put it together with the addition symbol which will will equal:

5 (h+9) = 5h + 45

Your Welcome! (hopefully this answers your question)

4 0
2 years ago
What is 1,248 divide by 16?
inn [45]
I think the answer is 78. 
7 0
2 years ago
Read 2 more answers
After 5 minutes of a basketball game
astra-53 [7]

Answer:

Something happens...

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Explain how you know 21/30 is greater than 2/3
    13·2 answers
  • Which point is an x-intercept of the quadratic function<br> f(x) = (x – 8)(x + 9)?
    12·1 answer
  • Assume a recent sociological report states that university students drink 5.70 alcoholic drinks per week on average, with a stan
    14·1 answer
  • Please answer this correctly
    13·1 answer
  • A painter leans a 20-ft ladder against a building. The base of the ladder is 12 ft from the building. To the nearest foot, how h
    9·2 answers
  • What is the surface area of the box below?
    14·1 answer
  • Help please I will give brainlest
    8·1 answer
  • Please Help! Don't mind horrible drawing ;)​
    6·1 answer
  • 40 POINTS
    5·1 answer
  • Assume that 0 Please help, thank you
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!