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
ss7ja [257]
2 years ago
7

The sum of the digits of a two digit number is 9 When the digits are reversed the number increases by 9. Find the number.

Mathematics
1 answer:
Jet001 [13]2 years ago
6 0

Answer:45

Step-by-step explanation:

Let the unit place be ‘x'

Tenth place be y

The number is 10y+x

x+y = 9 (according to the condition) (1)

Digits are interchanged Unit place' y ‘& tenth place ‘ x'

New no is 10x +y

This is 9 more than the original number

10x+ y = 10y+x +9

10x-x+y-10y = 9

9x-9y= 9

x-y = 1 (dividing by 9) (2)

Adding the two equations

2x = 10

x= 5

Substituting the value of x in first equation

y = 4

The number is 45, the original number is 54 this is 9 more of the new number.

Ans :45

You might be interested in
5 3rd power- 12 ÷ 3 need to show the steps of answer 121
Step2247 [10]
The answer is this hopefully this helped the only thing you need to do is just put the steps so just do - 12÷3 or you can ask somebody to help you to divide.

8 0
2 years ago
Answer both please asap (there’s a picture)
krek1111 [17]

Answer:

(0, 1)

Step-by-step explanation:

So, the spot on the graph where they cross.

4 0
3 years ago
Read 2 more answers
I need help with number 4 please you don't need to explain ​
inn [45]
I need some love in my life
8 0
2 years ago
Brainliest if correct
Darya [45]

Answer:

Multiply 4 x 2 and the add the P in the front like this:

P = 8

HOPE IT HELPS, BE SAFE :3

4 0
2 years ago
Read 2 more answers
Describe and correct the error in finding the difference of the polynomials
levacccp [35]

Answer:

4x+11 is the answer.

Step-by-step explanation:

( 4*2-x+3)-(3*2-5x-6)

=(8-x+3)-(6-5x-6)

=(11-x)-(0-5x)

=(11-x)-(-5x)

=11-x+5x

=11+4x

= 4x+11

6 0
3 years ago
Other questions:
  • Suppose a merry-go-round is spinning once every 3 seconds. If a point on the outside edge has a speed of 12.56 feet per second,
    13·1 answer
  • What is 3 multiplied by 3/4?
    9·2 answers
  • students are selling tickets to a scool fundraiser for every 15 tickets a student sells a student earns a T-shirt as a reward wh
    8·1 answer
  • James bought 2/3 pound of red apples, 3/4 pound of green apples, and 5/6 pound of yellow apples. How many pounds of apples did J
    10·1 answer
  • Nana can pack a bag of groceries in 6/8 of a minute, at that rate how many can she pack in 15 minutes?
    5·1 answer
  • Part D Complete the table to find the rule for the translation, the coordinates of triangle A′B′C′, and the coordinates of the t
    11·1 answer
  • Find the slope and the y-intercept of the graph of the linear equation. Then, graph the equation.
    15·2 answers
  • Need help with #12<br> Please help
    12·1 answer
  • Equations
    10·1 answer
  • Juanita bought a square calculator that has a measurement of 8.2 sq cm on one side. What is the area of the calculator?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!