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
777dan777 [17]
3 years ago
12

Which expression can be used to model the phrase “ the sum of three and a number”?

Mathematics
2 answers:
olga nikolaevna [1]3 years ago
5 0

Answer:

x + 3

Step-by-step explanation:

A 'sum' means addition, 'a number' is represented by a variable, in this case, I chose 'x'.  I could have picked any variable I wanted.

The sum of three and a number means:  three plus some number, which is

 3 + x       in math language.     We write variables before constants, so it gets

                  rewritten as x + 3

Oliga [24]3 years ago
5 0

Answer:

A) 3 + x

Step-by-step explanation:

You might be interested in
How can you find the whole in a percent problem?
Fudgin [204]

you should add more detail to your question but you can set up a proportion

4 0
3 years ago
Here's a graph of a linear function. Write the equation that describes that function.
Sedaia [141]

Answer:

The equation of the line is

2y=x+8

Step-by-step explanation:

This is a straight line graph.

And general equation of a straight is given by

y=mx+c

Where m is slope

c is the intercept on y axis at x=0

So at y=0, x=8. This is from the graph.

And inserting this value of y and x into the straight line equation

y=mx+c

0=-8m+c

Therefore, c=8m. Equation 1

Taking another point on the graph

at=0, y=4

Also, inserting this value of y and x into the straight line equation

4=0×x+c

4=0+c

Therefore, c=4.

Therefore the intercept is 4

From equation 1

c=8m c=4

Then m=c/8

m=4/8

m=1/2

Then the equations of then line is

y=mx+c

y=(1/2)x+4

Multiply through by 2

2y=x+8

The equation of the line is

2y=x+8

7 0
3 years ago
|v+8| -5=2 Help please
Galina-37 [17]

Answer:

v= -1 (BRAINLIEST PLEASE)

Step-by-step explanation:

|v+8| -5=2

Add 5 to each side

|v+8| -5=2

      +5= +5

Now you have |v+8|= 7

So what plus 8 equals 7?

-1

so now you have |-1+8| which is 7

so v= -1

3 0
3 years ago
Circle Q is centered at the origin with radius r. Point P(x, y) lies on circle Q. Make a conjecture. How can you find an equatio
salantis [7]

Answer:

The relation x^{2} +y^{2} =r^{2} is explained below.

Step-by-step explanation:

P(x, y) is a point on the circle. Q is the origin. Join PQ.

PQ is the radius.

Therefore, PQ = r

Draw PS perpendicular to the x-axis.

Now, ΔPQS is a right triangle.

By Pythagoros theorem,

PQ^{2}=PS^{2} +QS^{2}

r^{2}=x^{2} +y^{2}

x^{2} +y^{2} =r^{2}

5 0
3 years ago
Read 2 more answers
Find the LCM of 20 and 18.
dusya [7]
180 is the lcm for 20 and 18
6 0
3 years ago
Other questions:
  • Photo provided<br> Help me asap plzzzz
    6·2 answers
  • What is the range of f(x) = |-x|?
    13·1 answer
  • Find the axis of symmetry of y=x^2-12x+8
    10·1 answer
  • Represent the following sentence as an algebraic expression, where "a number" is the letter x. You do not need to simplify.
    9·1 answer
  • What do u get when u double 15
    12·2 answers
  • Please help me ASAP!!<br> Determine the intercepts of the line.
    11·2 answers
  • Melissa is buying a new television at BuyMart. The store is offering the rebates shown below. Melissa chooses a television that
    15·2 answers
  • ian's car can go 99 miles on 3 gallons of gas During a drive last​ weekend,Ian used 7 gallons of gas.How far did he drive?Use pe
    15·2 answers
  • Evaluate:<br> Two to the fifth power.
    6·2 answers
  • PlEase help you can edit the photo
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!