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
ludmilkaskok [199]
3 years ago
5

What is a in the problem 12+1.5a=3a

Mathematics
2 answers:
gtnhenbr [62]3 years ago
5 0

Move terms

12+1.5a=3a

Collect the like terms

1.5a3a=-12

Divide both sides by -1.5

-1.5a=-12

a=8

Nady [450]3 years ago
4 0

Isolate the a. Note the equal sign, what you do to one side, you do to the other.

First, subtract 1.5a from both sides

12 + 1.5a (-1.5a) = 3a (-1.5a)

12 = 3a - 1.5a

12 = 1.5a

Isolate the a. Divide 1.5 from both sides

(12)/1.5 = (1.5a)/1.5

a = 12/1.5

a = 8

8 is your answer for a.

______________________________________________________

Check: Plug in 8 for a.

12 + 1.5(8) = 3(8)

Simplify. Remember to follow PEMDAS.

12 + 1.5(8) = 24

12 + 12 = 24

24 = 24 (True)

_______________________________________________________

~<em>Loliii is Waifu</em>

You might be interested in
What is the answer??????
dexar [7]

Answer:

38 5/28

Step-by-step explanation:

Well start with the whole numbers 24 and 13 This is adding so that means everything has to be added together. 13+24=37 Now, lets go the fractions.

Find the LCD (Least Common Denominator)  of 3/4 and 3/7 and rewrite to solve with the equivalent fractions. (remember the Denominator is the BOTTOM PART of the Fraction. Such as the 4 in 3/4.)  

LCD = 28

21/28 + 12/28 = 33/28 which can be simplified to 1 5/28. Combining the whole and fraction parts 37 + 1 + 5/28 = 38 5/28 And that will be your answer. Another way you can do this is

converting mixed numbers to fractions Meaning put them in improper form where the numerator (the top number of a fraction is bigger than the denominator such as 4/3) , our initial equation becomes, 99/4 + 94/7

Applying the fractions formula for addition,

(99×7) + (94×4) / 4×7

= 693+376 / 28 =  

= 1069/ 28

Simplifying 1069/28, the answer is

= 38 5/28

And one more thing. An easier way to make a mixed number a improper fraction is the multiply the denominator by the whole number then add the numerator and whatever the denominator is it stays for example

38 5/28.

28 times 38 = 1064 then add the 5 and you get 1069! But we aren't done yet, the denominator was 28 so that means the full answer is 1069/28 and that is the Improper fraction form!

Hope this helps! (sorry I took so long)

~R.C aka dj

 

6 0
3 years ago
The volume of a cube is 27 cubic inches. What is the length of one edge of the cube?
yawa3891 [41]

Answer:  3

Step-by-step explanation: 3*3*3=27

7 0
2 years ago
Read 2 more answers
Help me please I would really appreciate it
mel-nik [20]

Adjacent angles in parallelograms are supplementary angles thus :

x + 130 = 180

x = 180 - 130

x = 50

7 0
2 years ago
The top of a soup can has an area of 12.56 cm2. What is the radius of the can?
Wittaler [7]
Try to divide the diameter by two
6 0
2 years ago
Describing a Translation
yarga [219]

Answer:

Step 1- Down

Step 2- (8 -1)

7 0
3 years ago
Other questions:
  • How many terms are there in a geometric series if the first term is 4, the common ration is 3 and the sum of the series is 160
    8·1 answer
  • Which of the following is the area of a quadrilateral with vertices at (-4,2),(1,2),(1,-3) and (-4,-3)
    5·1 answer
  • Solve for x in the equation x2 + 14x+17--96
    7·1 answer
  • Simplify 3x -5 + 25x-9
    9·2 answers
  • What is the reciprocal of -4
    13·2 answers
  • Help? what should i choose
    5·1 answer
  • What is the additive inverse of -2 + 8i?
    9·1 answer
  • Susan needs to simplify the expression shown below.
    8·1 answer
  • 3(4+2)/9=<br> help me please
    14·2 answers
  • In maths what is 17x - 12x​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!