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
belka [17]
3 years ago
7

If 2a - b = 4 , find a.

Mathematics
1 answer:
julia-pushkina [17]3 years ago
3 0
<h2>Answer:  a = ¹/₂ (4 + b)</h2>

<h3>Step-by-step explanation:</h3>

To solve for 'a' we have to make it the subject of the equation. Since there are two unknowns ('a' & 'b'), we won't get a numerical value of 'a', but an expression in terms of the second unknown 'b'.

Since 2a - b = 4                    <em> [add 'b' to both sides]</em>

then          2a = 4 + b             <em>[divide both sides by 2 = multiplying by  ¹/₂]</em>

                   a = ¹/₂ (4 + b)

You might be interested in
1 point
vlada-n [284]

Answer:

what are the answer choices given?

Step-by-step explanation:

3 0
3 years ago
Help. Me. Please. Pt1
sergejj [24]

Answer:

A

Step-by-step explanation:

X<Y means x is less than y-5 and you get A.

5 0
2 years ago
Read 2 more answers
How to find slope when giving two equations that equal each other?
9966 [12]

slope formula.:

m = (y_2 - y_1) / (x_2 - x_1)

so you just need two points from whatever function you have

Or if you already have the function formula, then just the number of the first term (if your function is this: y=ax^2 + bx + c then the a is the slope)

Hope this helps!

4 0
3 years ago
Geometry problem. The two rectangular rooms shown below are congruent.
kow [346]

Answer:

The answer is A. C = 13ft; d = 18ft; h = 90°; g = 90°



3 0
4 years ago
Which expression is equivalent to r^9/r^3?<br> O r^3<br> O r^6<br> O r^12<br> O r^27
valkas [14]

Answer:

r^12 no r^6

Step-by-step explanation:

I was wrong it is r^6 r−9(−3) r−9+3=r−6

  • r-6 becomes 1 over r6

5 0
2 years ago
Read 2 more answers
Other questions:
  • Which expression uses the greatest common factor and the distributive property to rewrite the sum 42 + 72?
    12·1 answer
  • Plz help with financial algebra !!
    11·1 answer
  • A taxi cab charges a pickup fee of $5.00 and $2.50 for each mile.
    7·1 answer
  • Use the following function rule to find f(39)
    5·1 answer
  • A bottling machine fills soda bottles with an average of 12.000 ounces of soda. The standard deviation is 0.002 ounces. If the d
    8·1 answer
  • Make the biggest possible number using the digits below only once2,3,1​
    9·2 answers
  • DO NOW
    10·1 answer
  • Joaquín compró una docena y media de factura la docena son parte de grasa dos tercios tiene dulce de leche y el resto son medial
    8·1 answer
  • Help please quick!!!!!!
    5·1 answer
  • 6(x-4y)<br> Expanding brackets please
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!