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
Mariulka [41]
2 years ago
13

The sum of digits of a cetain two - digit number is 7. Reversing its digits increases the by the number nine. what is the number

? you must use an algebraic expression to solve.
Mathematics
1 answer:
const2013 [10]2 years ago
7 0
The number is 34.
3 + 4 = 7
43 - 34 = 9
You might be interested in
2x=-y in standard form
IgorC [24]

Answer:

y=-2x

Step-by-step explanation:

4 0
2 years ago
Rosemary walks each week for exercise. Let d represent the distance walked and h represent the number of hours spent walking.
nadya68 [22]
Ok last week she walked 18/6 which equals 3 and 3 is less than 2.5. 2.5h is really just that times how many hours.D is the amount of miles.So,the awnser is going to  be b or d.But we dont know what d is in d=2,5h so we have to asume that b is the awnser
8 0
3 years ago
Read 2 more answers
PLEASE HELP!!!<br><br> i’ll mark brainliest if you’re correct!
ira [324]

Answer:

1.5

Step-by-step explanation:

15/10=1.5

21/14=1.5

Check:

10x1.5=15

Hope this helps!

8 0
2 years ago
Isaac has 21 green marbles and 7 blue .He wants to place them in identical groups without any marbles left over.What is the grea
dybincka [34]

Answer:

7 groups

Step-by-step explanation:

Each group would have 1 blue marble and 3 green marbles

8 0
3 years ago
6x + 3x² – x – x²<br> yeah im bad at math<br> please help !
juin [17]

Answer:

 x • (2x + 5)

Step-by-step explanation:

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "x2"   was replaced by   "x^2".  1 more similar replacement(s).

STEP

1

:

Equation at the end of step 1

 ((6x +  3x2) -  x) -  x2

STEP

2

:

STEP

3

:

Pulling out like terms

3.1     Pull out like factors :

  2x2 + 5x  =   x • (2x + 5)

5 0
2 years ago
Other questions:
  • You shopped online and found you mp3 player for $9.75 less than the store price p. The online price was $64. Write and solve an
    13·1 answer
  • $600 at 5% for 2 years. whats the balance
    15·1 answer
  • Two people located 500 yards apart have spotted a hot air balloon. The angle of elevation from one person to the
    13·1 answer
  • on a scale drawing a bookshelf is 8 inches tall.the scale factor is 1/8.what is the height of the bookshelf?
    8·1 answer
  • Which phrases can be represented by the algebraic expression 2x+1? Check all that apply
    10·2 answers
  • Whitney deposited $2,400,000 into an account in which interest is compounded quarterly at a rate of 2.9%. She made no other depo
    15·2 answers
  • QN (b) plz solve it fast ​
    15·1 answer
  • CAN SOMEBODY PLEASE HELPP THIS IS URGENT
    11·1 answer
  • Triangles XYZ and RST are similar. XY
    13·1 answer
  • PLSSS HELLLPPP MEE!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!