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
motikmotik
3 years ago
11

The tens digit of a two-digit number is 3 less than the units digit. Find the original number, if the sum of that number and the

number reversed is 143.
Mathematics
2 answers:
vlada-n [284]3 years ago
7 0

Let...

x=ones digit

x-3=tens digit

The number in terms of x would be...

10(x-3)+x = 11x-30

The number with its digits reversed would be...

10(x)+x-3 = 11x-3

And...

11x-30+11x-3=143     We can solve for x!

22x=176

x=8

The number would be 58.

answer: 58

cricket20 [7]3 years ago
4 0

Answer:

58

Step-by-step explanation:

8-5=3

58+85=143

You might be interested in
Allan ran 8 laps in 14 minutes. What is his time per lap?
Darina [25.2K]
I believe you divide 14 by 8 to figure out his time per lap. 
8 0
3 years ago
Read 2 more answers
The temperature at midnight is -5°C and is expected to drop 12°
victus00 [196]

Answer:

-17 degrees Celsius.

Step-by-step explanation:

If the temperature at midnight is -5, and it is supposed to drop 12 more by sunrise, the 12 degrees are subtracted from the initial temperature.

-5 - 12 = -17 degrees by sunrise.

8 0
3 years ago
SOMEONE PLEASE HELP!!
lesya692 [45]
First you need the size of an angle QPR = B = 180° - 123°
Lenght of QP = 10cm
QR = x
QP = r
x² = r² + r² - 2r² × cosB
8 0
2 years ago
Read 2 more answers
HEEEEELP please i need it
Mrac [35]

Answer:

Person 3 earns the most money every year

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Alexander was offered a job that paid a salary of $24,000 in its first year. The salary was set to increase by 4% per year every
qwelly [4]

9514 1404 393

Answer:

  $129,992

Step-by-step explanation:

The sum of a geometric series is given by ...

  Sn = a1·(r^n -1)/(r -1)

Here, the first term is 24000, and the growth factor r is 1+4% = 1.04. The sum is then ...

  S5 = 24000·(1.04^5 -1)/(1.04 -1) ≈ 129992

The total earned over 5 years was $129,992.

___

A spreadsheet can list the annual salaries and add them up. The salary each year is 1.04 times that of the previous year. That is shown in the attachment.

5 0
2 years ago
Other questions:
  • Write and solve an equation.
    7·1 answer
  • Find <img src="https://tex.z-dn.net/?f=f%5E%7B-1%7D%20" id="TexFormula1" title="f^{-1} " alt="f^{-1} " align="absmiddle" class="
    12·1 answer
  • What is the 30th term of the linear sequence below? −4, −1, 2, 5, 8
    14·1 answer
  • Square root of 10 multiplied by the square root of 20
    13·1 answer
  • this is Algebra 1-2-- how to you find r, the rate of change, when all you know is the third term is 120 and the fith term is 76.
    10·1 answer
  • A basketball player has already scored 56 points in a game. The team record for points in a game is 72. Which equation would all
    6·1 answer
  • Evaluate the following, expressing your answer as a decimal:<br> 3/8 - -0.2
    6·1 answer
  • Can someone help fast​
    8·2 answers
  • What is the answer to 3x + 4x - 2x
    9·2 answers
  • A circle with a radius of 11 meters is being dilated by a scale factor of
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!