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
Nady [450]
3 years ago
9

Eighteen less than three times a number is twice the number. Write and solve

Mathematics
1 answer:
goblinko [34]3 years ago
8 0

Answer:

The number is 18

Step-by-step explanation:

You can write an equation to represent this. Let x represent the unknown number.

3x - 18 = 2x

Move 2x to the left side. Remember, "change the side, change the sign." Add 0 as a placeholder to the right of the equals sign.

3x - 2x - 18 = 0

Simplify like terms.

x - 18 = 0

Move -18 to the right of the equals sign.

x = 18

Now that we know x = 18, we can substitute it into the problem.

"Eighteen less than three times 18 is two times 18."

18 x 3 = 54

54 - 18 = 36

36 is, in fact, two times 18. We can check this by dividing 36 by 2.

36 ÷ 2 = 18

You might be interested in
Robert invested $250 in an account paying an interest rate of 4.3% compounded annually. Assuming no deposits or withdrawals are
jeka94

Answer:

18.8 years

Step-by-step explanation:

5 0
3 years ago
I need help!! I don't know how to do this at all
Harman [31]
You have to make a proportion:
12+x/8=8/x
Then cross multiply to solve for x
8 0
3 years ago
What is the numeric value of E + B?​
ivanzaharov [21]

Answer:

<u>19</u> is the numerical value

Step-by-step explanation:

Also, when it's converted to number I.e.

E = 14 , B = 11

= 14 + 11 = 25

But in letters the numerical value is

E + B = 19

4 0
3 years ago
Read 2 more answers
What is <br> 4^ -3<br> 4^ -2<br><br> 2^ -3 + 3<br> 2^ -2 +3<br> 2^ -1 + 3
Scrat [10]
1/4³ or 1/64
1/4² or 1/16
1/2³ + 3 or 3 1/8 or 3.125
1/2²+3 or 1/4 +3 or 3 1/4 or 3.25
1/2¹ +3 or 3 1/2 or 3.5
6 0
3 years ago
The value of a tractor, in dollars, x years from its models year can be predicted by the function
ValentinkaMS [17]
1442.55 is the answer
5 0
3 years ago
Read 2 more answers
Other questions:
  • Camille is attending a fundraiser. She pays for her admission and buys raffle tickets for $5 each. If she buys 10 raffle tickets
    5·2 answers
  • 100 POINTS!!! PLEAAASSEEE HELP ME!!!!
    15·2 answers
  • Can someone help me with this one
    12·1 answer
  • -x+268=57 solve for x
    12·1 answer
  • The Square of the sum of three and five
    8·1 answer
  • Which graph reprIn “The Girl Who Silenced the World for Five Minutes,” what is the most likely reason Suzuki speaks about hersel
    14·1 answer
  • Pls help! (put a joke in ur awnser)
    11·2 answers
  • Where are the black dots located?!!
    9·2 answers
  • Help me plz which formula should I use??​
    12·1 answer
  • A line goes through the points (5, -1) and (7, -5). What is a possible equation to a new line that is perpendicular?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!