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dimulka [17.4K]
3 years ago
14

I am a two-digit number. The sum of my two digit is 9. The difference of my digits is 5. What number am I?

Mathematics
2 answers:
Veronika [31]3 years ago
8 0

Answer:


Step-by-step explanation:see this. plz mark as brainliest


Sedaia [141]3 years ago
7 0

Answer:

72

Step-by-step explanation:

The two digit number can be represented by xy, where x and y must add to 9 and x - y must subtract to 5. Make a system of equations.

  • x + y = 9
  • x - y = 5

Use the elimination method and add the terms from top to bottom like so. The y and -y cancel out.

2x = 14

Divide both sides by 2.

x = 7

Substitute 7 for x into the first equation (either eqn would work).

(7) + y = 9

Subtract 7 from both sides.

y = 2

Combine these two together; xy --> (7)(2) --> 72.

The number is 72.

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184 square inches

Step-by-step explanation:

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Simple...

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and

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Step-by-step explanation:

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