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
Over [174]
2 years ago
13

Which expression is equivalent to x + x + x + 5 + 5 no mater what value substituted in for x

Mathematics
2 answers:
goldenfox [79]2 years ago
6 0

Answer:

3x+10

Step-by-step explanation:

So you're going to want to count the amount of X's their are (3) and put them together (3x). Then to simplify the expression, add the 5+5 together, since they are they same type of variables. Now, you put everything together (3x+10).

kipiarov [429]2 years ago
3 0

Answer:

3x+10

Step-by-step explanation:

You might be interested in
Can someone help me?
kirza4 [7]

Answer:

C. -36 3/10

Step-by-step explanation:

4 2/5 = 22/5

22/5 = 4.4

4.4(-8.25)

-36.3 = -36 3/10

Have a great day :3

8 0
3 years ago
laura spends 4 hours reading a book that is 76 pages long. what is the average number of pages she read per hour?
Studentka2010 [4]

The average number of pages she reads per hour is 19 pages per hour

<h3>How to determine the average number of pages she read per hour?</h3>

The given parameters are:

Number of pages = 76 pages

Number of hours = 4 hours

The average number of pages she reads per hour is calculated using the following formula

Average = Number of pages/Number of hours

Substitute the known values in the above equation

Average = 76 pages/4 hours

Evaluate the quotient

Average = 19 pages per hours

Hence, the average number of pages she reads per hour is 19 pages per hours

Read more about average at:

brainly.com/question/20118982

#SPJ1

5 0
2 years ago
Sophia has an ear infection. The doctor prescribes a course of antibiotics. Sophia is told to take 500 mg doses of the antibioti
julsineya [31]

Answer:

see below

Step-by-step explanation:

Dosage= 500 mg

Frequency= twice a day (every 12 hours)

Duration= 10 days

Number of dosage= 10*2= 20

residual drug amount after each dosage= 4.5%

We can build an equation to calculate residual drug amount:

d= 500*(4.5/100)*t= 22.5t, where d- is residual drug, t is number of dosage

After first dose residual drug amount is:

  • d= 500*0.045= 22.5 mg

After second dose:

  • d= 22.5*2= 45 mg

As per the equation, the higher the t, the greater the residual drug amount in the body.

Maximum residual drug will be in the body:

  • d= 20*22.5= 450 mg at the end of 10 days

Maximum drug will be in the body right after the last dose, when the amount will be:

  • 500+19*22.5= 927.5 mg
5 0
3 years ago
Solving systems of equations with substitution:<br> y= 2x-4 <br>y= -x+5<br><br>help please!
Furkat [3]
<span>y= 2x-4 
y= -x+5
so

</span><span>2x-4 = -x+5
2x +x = 5 +4
3x = 9
x =3

y = 2x-4
y =2(3) - 4
y = 6-4
y = 2

answer: (3,2)</span>
4 0
3 years ago
Can an answer be incorrect even if it looks reasonable?
Anna [14]

Answer:

  • <em>Yes, an answer can be incorrect even it it looks reasonable.</em>

Explanation:

Yes, an answer can be incorrect even if it looks reasonable, for two main reasons:

  • The assumptions (premises or statements) on which the reasoning is based are wrong.
  • The reasoning sounds good but it is a fallacy.

To avoid the first condition you must be sure about the facts, which may be information from an experiment that you performed or from a source. In order for an answer be correct, make sure your premises are true.

Dealing with the second condition, a fallacy is an argument that seems strictly logical but is misleading: you must learn which reasonings are really valid; this is, that the conclusion unequivocally follows from the premises.

There are rules for the arguments to be valid, and that is the object of logic study.

Fallacies are sometimes used by those interested in supporting a point of view without having true reason on their side. You should have some knowledges about logic to avoid being victim of the fallacies, which can drive you to make wrong decisions.

3 0
3 years ago
Other questions:
  • assume that a company sold 5.75 million motorcycles and 3.5 million cars in the year 2010. the growth in the scale of motorcycle
    10·1 answer
  • a farmer plants 0.4 of a field with wheat. the field is 3.45 acres. how many acres are planted with wheat?
    11·1 answer
  • F(x)=5-2x<br><br>PLEASE HELP DUE TODAY!!!
    12·1 answer
  • What is the area of this parallelogram?<br><br> in or in2
    14·2 answers
  • Please please help need this ASAP!!! a will mark brainliest to whoever can answer quickly please!
    10·1 answer
  • If a quadratic equation has 4-i as a solution, what must the other solution be?
    7·1 answer
  • The ages of workers in a certain industry are approximately normally distributed with a mean of 30 years and a
    7·1 answer
  • Carmen's butterfly has wings that are 25 centimeters long. How many millimeters is the length of the wings?
    15·2 answers
  • M= -3 b= -1 slope intercept form ​
    6·1 answer
  • Calculate m∠ABC and m∠CBD, what is the value of x?<br><br> Enter your answer in the box.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!