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
goblinko [34]
3 years ago
9

If 2a+4b=5 and a is equal to three times b, what is 3a?

Mathematics
1 answer:
IrinaK [193]3 years ago
7 0

Answer:

3a=4.5

Step-by-step explanation:

it says that "a is equal to 3 times b", which translates to a=3b

We can substitute a as 3b in 2a+4b=5

2(3b)+4b=5

multiply

6b+4b=5

add

10b=5

divide by 10

b=1/2

since it's given that a=3b, we can multiply 1/2 by 3

a=3/2

3a is 3 times a, so we can mutiply 3(3/2)=9/2=4.5

Hope this helps!

You might be interested in
What is the Y- Intercept <br><br> |A| (0,6)<br> |B| (3,0)<br> |C| (0,3)<br> |D| (6,0)
Elza [17]
The answer to your question is (0,3)
4 0
3 years ago
The whole sales price for a chair is $165. A certain furniture store marks up the wholesalers price by 15%. Find the price of th
vichka [17]

Answer:

$189.75

Step-by-step explanation:

Whenever you want to find the percent of something, you need to turn the percent into a decimal. In this case, we need to find 115% of the wholesale price because there is a markup, so the cost will be higher.

115% as a decimal is 1.15. Here is how the equation will be set up:

$165 • 1.15 = $189.75

No rounding is necessary for this problem because it is already to the nearest cent.

4 0
3 years ago
A) Find the GCF<br> B) Factor out the GCF<br> C) What are the solutions?
Shalnov [3]

Answer:

A) GCF = b^{2}

B) b^{2}(3b + 10) = 0

C) b = 0, b = -10/3

Step-by-step explanation:

4 0
3 years ago
What is unique about a number that a perfect square
Alexandra [31]
A square number or perfect square is an integer that is the square of an integer; in other words, it is the product of some integer with itself. For example, 9 is a square number, since it can be written as 3 × 3
7 0
3 years ago
Which of these is a parent function? And can you tell me how you know?
avanturin [10]
Hey there!

A parent function is the most basic function in any group of functions. For example, f(x) = x^2 is the parent function for quadratic functions, and y = x is the parent function for linear functions. When there's nothing added, subtracted, multiplied, or divided to the function.

For A, we see that we're multiplying 2 times 3^x, and since this is not any alternation of any parent function or any parent function in particular, we can rule it out.

For B, we see that 3 is being added to x^2, so it cannot be a parent function.

For C, we see that 2 multiplied to e, therefore it cannot be the mot basic function.

Finally, for D, we see a function that looks similar to the quadratic parent function and is very simple itself. Any alterations to this is any other quadratic function

Your answer is D.

Hope this helps!


7 0
3 years ago
Other questions:
  • Mike made a 9 inch sub sandwich he needs to cut it into 2/3 inch pieces how many pieces will he be able to cut
    5·1 answer
  • If the function 5x + y = 1 has the domain {-2, 1, 6}, then what is the corresponding range?A.
    8·2 answers
  • The following graph represents the quadratic parent function.<br> TRUE OR FALSE
    13·1 answer
  • Susan, Chang, and Henry sent a total of 127 text messages over their cell phones during the weekend. Chang sent 3 times as many
    10·1 answer
  • Please help!!! Brainliest answer! Thank you
    14·1 answer
  • Please help I'm really stuck!
    15·2 answers
  • -|-12|-|-25-2| = ??
    6·1 answer
  • Find the value of x.<br>need the answer today please.<br>Thank you.​
    14·2 answers
  • Select all expressions that are equivalent to 2x+2+4x-2x-5 **
    8·1 answer
  • Helphelphelphelp please
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!