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
ddd [48]
2 years ago
11

Which of the following is an example of an open equation? 5x + 7 = 12 , 12 + (-8) = 4 , 25 = 5 (5) , 8 + 0 =8

Mathematics
1 answer:
spayn [35]2 years ago
7 0

An open equation is an equation that contain one or more unknow variables.

And that/those variable(s) can be found by solving the equation that make the equation true.

A variable is an English alphabet.

For example, a,b, x, y,z etc.

A variable represents a unknow value for a particular quantity.

In the given options 5x + 7 = 12 , 12 + (-8) = 4 , 25 = 5 (5) , 8 + 0 =8 .

In first option, we have unknow variable x is there.

But in all other options we don't value any variable.

Therefore, all other options can't be open equation.

So, final answer is 5x + 7 = 12 is the only open equation in given options.

You might be interested in
Craig has a job waiting tables where he earns $3.15 per hour plus tips. Craig earned $74.67 in tips during his shift yesterday.
oksano4ka [1.4K]

Answer:

3.15x-79.48

i think c:

3 0
2 years ago
An item on sale costs 80% of the original price. If the original price was $95, what is the sale price?
WITCHER [35]

Answer:

19$

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
You invest $700 in an account that pays an interest rate of 6.5%, compounded continuously.
Nina [5.8K]
Please include the instructions when you post a question.  Thanks.

Use the formula A = P*e^(rt).

Here, A = $700*e^(0.065*t), where t is the # of years (which you have not yet included in your post).

As an example:  After 2 years you'll have   A = $700*e^(0.065*2), or A=$797.18, in your account.
5 0
2 years ago
Read 2 more answers
13a+26&gt;-13<br><br><br>Answer and Check it.
Sonbull [250]
I think It's a>-3, maybe.
5 0
3 years ago
the diameter of a can is 8cm the height is 12cm work out how much water is in the can using method V = PI r2h. use 3 as the vaul
givi [52]
<span> high and the </span>diameter<span> is </span>8cm using<span> the formula </span>V<span>=.π r ²h, </span>work out<span> how </span>much<span> ...the </span>height<span> h is given as </span>12 cm<span> ... Note: Generally we would </span>use<span> 3.14 as the rounded </span>value<span> of </span>pi<span>. ... when dealing </span>with<span> liquids, turn cm</span>3<span> to milliliters. ... Adding and Subtracting Polynomials Math Word Problem Solution </span>Method<span> ..</span>
7 0
3 years ago
Other questions:
  • 3|3t+1|=2|6t+3| Need hep
    5·1 answer
  • Find two equivalent fractions for 2/12
    10·2 answers
  • MO bisects ∠LMN, m∠NMO =6x-20,and 2x+36. Solve for x and find m∠LMO
    15·1 answer
  • HELP PLEASE 50 POINTS!!!!!!!!!!!!!!!
    8·1 answer
  • I need help with math please
    8·1 answer
  • Which equation is equivalent to
    5·1 answer
  • There were 36 students trying out for the school basketball team, but only 2/9 were going to make it through. How many students
    9·1 answer
  • Can anyone please help me ASAP?I have included a picture.
    14·2 answers
  • If you have a decimal answer, round to the nearest tenth!<br> 2/3c−4=8
    10·1 answer
  • Does this graph show a function? Explain how you know.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!