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
ValentinkaMS [17]
3 years ago
5

The sum of the digits of a two-digit

Mathematics
1 answer:
Ann [662]3 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.

You might be interested in
at the football game on friday andrew threw 15 passes. he completed 10 for 120 yards what was his average per completion
Sunny_sXe [5.5K]

Answer:

120 divided by 10 is 12 yards per completion

6 0
3 years ago
ASAPPP
Vlad [161]

The interest she would pay is $694.40.

<h3>What is simple interest?</h3>

Simple interest rate is the interest that is paid only on the principal portion of a loan. This means that the debtor does not pays interest on the interest rate already accrued.

<h3>What interest does she pay? </h3>

Simple interest = principal x time x interest rate

$6200 x 4 x 0.028 =  $694.40.

To learn more about interest, please check: brainly.com/question/26164549

3 0
2 years ago
Help help help help math
lidiya [134]

Answer:

Step-by-step explanation:

2x+y

=2(2)+1

=4+1

=5

3 0
2 years ago
Read 2 more answers
What is the surface area,explain your work
Marianna [84]
The shape is a square pyramid, meaning it has one square face and four triangle faces of equal area. Add these areas together to get the total surface area.

Area of Square + 4*Area of Triangle = SA

Area of Square:
2^2=4

Area of Triangle:
0.5*2*3=3

SA=4+4*3
SA=16 meters squared
8 0
3 years ago
This figure is made up of two rectangular prisms.<br><br> What is the volume of the figure?
kow [346]

Answer:

do you

Step-by-step explanation:

give options???I like your pfp btw

8 0
3 years ago
Read 2 more answers
Other questions:
  • Find the 11th term of the arithmetic sequence an=<br>-12 + 4(n-2)<br>a11=__​
    10·1 answer
  • Please help me on this!!!!!!
    11·1 answer
  • Cameras R Us has a sale for 25% off camera bags, which is a discount of $20. To find the original cost of the camera bag, Tara c
    9·2 answers
  • What is the difference between a repeating decimal and a terminating decimal?
    15·1 answer
  • Lewis is rolling a 10-sided die 250 times. Each side of the die is labeled with a number 1 – 10. Based on the theoretical probab
    13·2 answers
  • If you divide or multiply by a negative, you must remember to ________ the inequality sign.
    10·2 answers
  • Answer this fast please ​
    13·2 answers
  • Can someone please answer my question for real please. I’ll give extra points
    10·1 answer
  • Complete the table below.<br> HeLPP ILL GIVE BRAINLIEST!
    15·2 answers
  • Suppose you drive four miles South and then ten miles East. How far away are you from your starting point?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!