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
creativ13 [48]
3 years ago
8

Sum of two digit number is9.When we interchange the digits it is found that the resulting new number becomes twice the other num

ber. What are the numbers
Mathematics
1 answer:
ruslelena [56]3 years ago
8 0

Answer:

4 and 5

Step-by-step explanation:

Let the numbers be x and y

If their sum is 9, hence;

x + y = 9 ....1

When reversed

10y+x = 2(10x+y)

10y+x = 20x + 2y

10y - 2y = 20x - x

8y = 19x

y = 10x/8 ...2

Substitute equation 2 into 1;

From 1;

x+y = 9

x +(10x/8) = 9

18x/8 = 9

18x = 72

x = 72/18

x = 4

Since x+y =9

y = 9-x

y =9-4

y = 5

Hence the numbers are 4 and 5

You might be interested in
20 POINTS IF CORRECT CAN SOMEONE HELP ME
Nataly [62]

Answer:

what do you need help with?

4 0
2 years ago
Read 2 more answers
the map shows the route for a race. you are at a, which is 6000 feet from the first checkpoint b. the second checkpoint c is loc
Nimfa-mama [501]
<span>The two checkpoints are 4,920 ft. apart from each other. The total distance of the race is 15,840 ft. If checkpoint C half the distance between checkpoint B and the end of the race, the distance between Checkpoint B and the end of the race is 9,840 ft. Half of that distance is 4,920 ft.</span>
3 0
3 years ago
Find the total number of unit cube that fill the entire prism
Nonamiya [84]

Answer:

72 cubes

Step-by-step explanation:

Attached is the picture drawn (though not great one), showing 6 cube on length of prism, 3 cubes on width and 4 cubes on height of prism.

Given: Length of prism= 6

           Width= 3

            Height= 4

To know the number of cubes, which can fill the entire prism, we need to find volume of prism.

∴ Volume of prism= length\times width\times height

Volume of prism= 6\times 3\times 4= 72

∴ 72 units of cube can fill the entire prism.

3 0
2 years ago
Please Help! Best gets Brainlest
Len [333]

Answer:

A. g=11

Step-by-step explanation:

We want to find which choice makes the equation true. Let's plug in each answer choice.

A. g=11

26=7(11-9)+12      

26= 7(2)+12              Solve inside the parentheses.

26= 14+12                 Multiply 7 and 2.

26= 26                      Add 14 and 12.

This answer must be correct, but let's check the other choices .

B. g=12

26=7(12-9)+12      

26= 7(3)+12              Solve inside the parentheses.

26= 21+12                 Multiply 7 and 3.

26≠33                       Add 14 and 12.

This choice is not correct.

C. g= 13

26=7(13-9)+12      

26= 7(4)+12              Solve inside the parentheses.

26= 28+12                Multiply 7 and 4.

26≠40                      Add 28 and 12.

This is also not correct.

D. g= 14

26=7(14-9)+12      

26= 7(5)+12              Solve inside the parentheses.

26= 35+12                 Multiply 7 and 5.

26≠47                       Add 35 and 12.

This choice is not correct either.

The value of g that make the expression 26=7(g-9)+12 a true statement is A. g=11.

5 0
3 years ago
Hola me pueden ayudar con este punto...gracias
Natalka [10]

Answer:

dont speak yo language m8

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Doug regularly mows his neighbor's lawn. Last month, Doug's neighbor paid him $55 for 6 hours of mowing. Is this situation most
    6·1 answer
  • one linear expression is subtracted from a second linear expression and the difference is x-5. When is the difference when the s
    10·1 answer
  • Ms. Warren had each student take 3 pencils and create a triangle with them. Roberto has 3 pencils that measure 12 cm, 5 cm, and
    15·2 answers
  • What is the expanded form for 602,050,123
    8·1 answer
  • Click an item in the list or group of pictures at the bottom of the problem and, holding the button down; drag it into the corre
    12·1 answer
  • Pls help me it detects if it’s right or wrong pls answer both question I will give u brain list
    8·1 answer
  • Please help!! <br> Need to get this done
    14·1 answer
  • Can someone help with this? the question is "What is the value of x that makes the equation true?"
    7·1 answer
  • Which unit fraction would you multiply by to convert 17 inches to centimeters?
    11·1 answer
  • A sociologist recorded the estimated life expectancies of women born in Center City. Use the data from women born in 1970 and 20
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!