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
frosja888 [35]
3 years ago
10

If three times a number minus 2 equals 13, what is the number?

Mathematics
1 answer:
Nana76 [90]3 years ago
3 0
Change the messy words into numerals
3     times          a number         minus            2           equals         13
3          ×                n                     -                 2               =               13

3n - 2 = 13
take 2 to the other side
3n - 2 + (2)  = 13 + (2)
3n = 15

Divide by 3 on either sides to isolate n
\frac{3n}{3} = \frac{15}{3}
3 and 3 cancels out

n = 5

check:
3 times 5 minus 2 equals 13
3     ×    5       -      2     =     13
15    -      2        =          13
13            =               13

The number is 5
You might be interested in
Identify each triangle based on angles. (Acute, Obtuse or Right)please I don’t understand this
Dima020 [189]

Answer:

45

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Consider the following regular decagon. Choose the correct card to fill in the blanks below. 30° 36° 60 72° 5 10 15 20 of Rotati
pochemuha

The decagon can be divided in 10 equal parts, so if a full rotation is of 360º, a one tenth rotations will be of 360º/10= 36º

So if you rotate the decagon by a multiple of 36º the rotation will be onto itself, i.e. the figure will look as if it wasn't moved.

From the choices given, the angle that will rotate the angle counterclockwise onto himself will be multiple of 36º, the only one is 72º

This figure has 5 lines of symmetry that cross each vertex and 5 lines of symmetry that cross form the midpoint of one side to the midpoint of the oposite side. This is a total of 10 lines of symetry.

So you can reflect the decagon 10 different ways.

The correct choice is C: 36º, 72º, 10, 5

3 0
1 year ago
What is the value of (32 + 1)">
Sphinxa [80]

Answer:

yes

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What the * stands for ?
TEA [102]
Depends. It’s called an asterisk.
In math it’s used for multiplying.
So 5*5= 25
5 0
3 years ago
If i had 33 watermelons in one hand and 21 apples in another <br> what do i have?
choli [55]

Answer:

Your hands full

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • George ate 4 slices of pizza. If this was 25% of the slices at the dinner table, how many slices were at the table to start with
    10·1 answer
  • Please please please please help
    8·1 answer
  • Brainliest + Points! I choose A, Am I correct?
    13·2 answers
  • Given the points A(0, 0), B(e, f), C(0, e) and D(f, 0), determine if line segments AB and CD are parallel, perpendicular or neit
    13·1 answer
  • Nia family bought 2 lb chesse and 1/4 pound was left . How much was eaten
    13·1 answer
  • What is the absolute value of the complex number -4-√2i?
    8·2 answers
  • Question 1 A) f(x)=2^x and g(x)=3−x I got 3x^2+12 don't know if im right B) i need help for this f(x)=sinx and g(x)=x
    12·1 answer
  • PLEASEEE SOMONEE HELP ASAP!!
    11·1 answer
  • Suppose you have 57 coins in a jar consisting entirely of dimes and quarters, worth a total of $10.65. How many dimes are in the
    5·1 answer
  • Pete's Pottery observes the heights of the vases in inventory. The results are represented by the box plot shown below.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!