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
Vilka [71]
3 years ago
8

12 + 3y = 21 Expression or Equation:

Mathematics
2 answers:
victus00 [196]3 years ago
5 0
It is an equation because it has an equal sign. Whereas an expression does not have an equal sign.
Tamiku [17]3 years ago
3 0

Answer:

equation

Step-by-step explanation:

12 + 3y = 21

-12. -12

__________

3y = 9

y = 3

You might be interested in
What value of c makes the statement true? -2x3(cx3 + x2) = -10x6 - 2x5
Nadya [2.5K]
C would = 5 to make this statement true
7 0
4 years ago
Read 2 more answers
Alex is drawing rectangles with different areas on a centimetre grid he can draw 3 different rectangles with an area of 12cmsqua
Naily [24]

Answer:

Alex can only draw a rectangle with an area of 11 cm²

The reason for the answer is that 11 is a prime number

Step-by-step explanation:

We are told that Alex is drawing rectangles with different areas on a centimeter grid, and he can draw 3 different rectangles with an area of 12 cm²

We have the minimum grid length of centimeters = 1 cm, since we assume that only integers can be used.

That is to say:

12 = 1 x 12

12 = 2 x 6

12 = 3 x 4

These are the 3 different rectangles with an area of 12 cm²

Now we have to find how many rectangles Alex could draw with an area of 11 cm²

11 = 1 x 11

Therefore, only one factorization is possible. Which means that you can only draw a rectangle with an area of 11 cm²

The reason for the answer is that 11 is a prime number, which means only the common factor of 1 and the number itself, that is, 11.

7 0
4 years ago
Simplify the expression 4*4+4*x
leva [86]

Answer: The answer is 16+4x

Step-by-step explanation:

4*4 is 16 and 4*x is 4x since I can't add them together it would be 16+4x

8 0
3 years ago
Suppose the time to process a loan application follows a uniform distribution over the range of 8 to 13 days. What is the probab
Arlecino [84]

Answer: 0.2

Step-by-step explanation:

We know that , the probability density function for uniform distribution is given buy :-

f(x)=\dfrac{1}{b-a}, where x is uniformly distributed in interval [a,b].

Given : The time to process a loan application follows a uniform distribution over the range of 8 to 13 days.

Let x denotes the time to process a loan application.

So the probability distribution function of x for interval[8,13] will be :-

f(x)=\dfrac{1}{13-8}=\dfrac{1}{5}

Now , the probability that a randomly selected loan application takes longer than 12 days to process will be :-

\int^{13}_{12}\ f(x)\ dx\\\\=\int^{13}_{12}\dfrac{1}{5}\ dx\\\\=\dfrac{1}{5}[x]^{13}_{12}\\\\=\dfrac{1}{5}(13-12)=\dfrac{1}{5}=0.2

Hence, the probability that a randomly selected loan application takes longer than 12 days to process = 0.2

8 0
3 years ago
The average of Johnny's two tests is a 92. What must he get on a 3rd test to raise his average to a 94?
eduard
Let's start by writing an equation for this. So in overall, there will be 3 tests. Therefore, If the first two average to 92, then the third plus those two individual scores divided by 3 will need to equal 94. Lets call the new score x.
(92 x 2 + x) / 3 = 94
184 + x = 282
x = 98
Johnny will need to get a 98 on the 3rd test to raise his average to exactly 94.
I hope this helps :-)
7 0
3 years ago
Read 2 more answers
Other questions:
  • A computer store sells computers 10% more than they pay for them if the store pays x for a computer, which expression would repr
    11·1 answer
  • Probabilities are __<br> one.
    15·2 answers
  • Mr. Sanchez bought 2 magazines for $9.95 each and 1 book for $14.95. If the sales tax is 6%&lt; what is the total cost of Mr.San
    6·2 answers
  • Can someone help with this please
    14·1 answer
  • Find the indefinite integral ∫((x^2)/(4x^3+9)) dx
    12·1 answer
  • A barrel of oil was filled at a constant rate of 6.2gal/min. The barrel had 9 gallons before filling began. Enter an equation in
    9·1 answer
  • Determine the domain of the function graphed above.
    5·1 answer
  • Factored form with it’s solution x^2 + 2x -3 =0
    13·1 answer
  • Consider the following proportion:
    10·2 answers
  • What is the length of the line segment with endpoints (12.7, −6.5) and (−13.5, −6.5) ?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!