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3 years ago

The sum of two numbers is 12 and their difference is 5. Find each of the numbers.

Mathematics

2 answers:

Andreyy893 years ago

6 0

Answer: 8.5 and 3.5

Step-by-step explanation:

Let the two numbers be a and b

Represent the question in an equation:

a + b = 12....... eqn 1

a - b = 5...........eqn 2

2a = 17 addition of both equations

Divide both sides by 2

a = 17/2

a = 8.5

To find b, Substitute the value of a into equation 2

a - b = 5, where a = 8.5

8.5 - b = 5

Make b the subject

-b = 5 - 8.5

-b = -3.5, divide both sides by -1

b = 3.5

Check with reference to the question:

8.5 + 3.5 = 12

8.5 - 3.5 = 5

I hope this is clear, please mark as brainliest answer.

vivado [14]3 years ago

4 0

The two number would be 3.5 and 8.5

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klio [65]

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4 years ago

Math help please Show work if possible

a_sh-v [17]

Answer:

a) t = -7

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AlexFokin [52]

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2 years ago

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Aneli [31]

Answer:

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Step-by-step explanation:

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sukhopar [10]

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