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3 years ago

One number is 7 less than 3 times the second number. Their sum is 29. Find the numbers.

Mathematics

1 answer:

mote1985 [20]3 years ago

8 0

Answer:

<h3>The numbers are 20 and 9 </h3>

Step-by-step explanation:

Let the first number be x

Let the second number be y

For the first equation 

One number is 7 less than 3 times the second number is written as

x = 3y - 7

For the second equation

The sum of the two numbers is 29

So we have

x + y = 29

Substitute the first equation into the second one

That's

3y - 7 + y = 29

4y = 29 + 7

4y = 36

Divide both sides by 4

Substitute y = 9 into x = 3y - 7

That's

x = 3(9) - 7

x = 27 - 7

The numbers are 20 and 9

Hope this helps you

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Leviafan [203]

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Step-by-step explanation:

Let x be one angle

then the other angle will be 90-x

As the sum of complementary angles is 90

So,

then according to statement

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The two complementary angles are:

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Keywords: Angles, triangles

Learn more about angles at:

#LearnwithBrainly

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3 years ago