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
Lubov Fominskaja [6]
3 years ago
10

The sum of the two digit number is 12. If the digit are revesed, then the new number is 18 less than the originaol muber that is

the number?
Mathematics
1 answer:
FromTheMoon [43]3 years ago
6 0

Answer:

A) X + Y = 12

B) 10Y + x = 10x + Y -18

B) 9Y = 9x -18 multiplying A) by -9

A) -9Y = 9x - 72  adding A and B we get

0 = 18x -90

x = 5

The number is 75

Double-Check

7 + 5 = 12

75 -57 = 18





Step-by-step explanation:


You might be interested in
jennifer has a taco stand. she has found that her daily costs can be modeled by c(x)=x^2-40x+610, where c(x) is the cost, in dol
Minchanka [31]
C(x) = 300.

Our question becomes simple: 300 = x^2-40x+610

x^2-40x+610-300 = 0
x^2-40x+310 = 0

Now find the value for x with either the quadratic formula or by factorization.

Let me know how it goes. Giving the full answer won’t help you improve
6 0
3 years ago
Read 2 more answers
I don't under stand what is wrong.
MAXImum [283]

Answer:

In the first step, there is an issue when distributing the -3 to the terms inside of the parentheses. When multiplying the -3 to the -5, you would get an answer of +15, not -15.

The full correct process is:

(4m + 9) - 3(2m - 5) = 4m + 9 - 6m + 15

                                = 4m - 6m + 9 + 15

                                = -2m + 24

4 0
2 years ago
Simplify the following expression:<br> -6x + 4(-x - 3)
ss7ja [257]

Answer:

- 10x - 12

Step-by-step explanation:

- 6x + 4( - x - 3) \\  - 6x - 4x - 12 \\  - 10x - 12 \\   = - 2(5x + 6)

3 0
3 years ago
3/5 divide by 2/3 help it's for my homework ​
gregori [183]

Answer:

.9

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
5 x minus 10 y = 30 what is the first step to find x
chubhunter [2.5K]
Move X to the other side with the 30.
3 0
3 years ago
Other questions:
  • How do I round 3.047 to the nearest hundred and show the math
    6·1 answer
  • janie has four pieces of fruit two of the pieces of fruit are bananas write two fractions that describe the fraction of fruit th
    9·1 answer
  • Which number is a factor of 20, but not a multiple of 2? 12, 5, 10 or 4?
    6·2 answers
  • A bonsai tree is 18 inches wide and stands 2 feet tall. What is the ration of the width of the bonsai to its height?
    12·1 answer
  • I need work shown. I can't figure these out
    7·1 answer
  • Explain how to determine if the number is a solution to the equation. n + 6 = 33 for n = 27
    7·2 answers
  • Amal scored 84, 91, 78, and 86 on his last four (4) quizzes. What is his quiz average? Show work please.
    11·2 answers
  • A) Mr. Ghale bought a secondhand scooter for R$ 1,40,000. He spent Rs 7,500 to
    15·1 answer
  • Help Plssssssssssssssssssss
    7·1 answer
  • Round 3,996 to the nearest ten thousand
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!