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Brrunno [24]
3 years ago
14

The sum of 3 numbers is 1305. The first number is 360. The second

Mathematics
2 answers:
Artemon [7]3 years ago
8 0

Answer:

225

Step-by-step explanation:

x + y + z = 1305

x = 360

y = 360×2 = 720

z = 1305 - 360 - 720 = 225

zubka84 [21]3 years ago
7 0

Answer:

225

Step-by-step explanation:

<em>since </em><em>the </em><em>first</em><em> </em><em>number </em><em>is </em><em>3</em><em>6</em><em>0</em><em> </em><em>and </em><em>the </em><em>second</em><em> </em><em>number </em><em>is </em><em>twice </em><em>the </em><em>first </em><em>number </em><em>meaning</em><em> </em><em>it's </em><em>(</em><em>3</em><em>6</em><em>0</em><em>×</em><em>2</em><em>)</em><em> </em><em>which </em><em>is </em><em>7</em><em>2</em><em>0</em><em>,</em><em>you </em><em>have </em><em>to </em><em>add </em><em>the </em><em>two </em><em>and </em><em>subtract</em><em> </em><em>by </em><em>1</em><em>3</em><em>0</em><em>5</em><em> </em><em>to </em><em>find </em><em>the </em><em>value </em><em>of </em><em>the </em><em>third </em><em>number(</em><em>which </em><em>I </em><em>have </em><em>represented</em><em> by</em><em> </em><em>x)</em>

<em>3</em><em>6</em><em>0</em><em>+</em><em>7</em><em>2</em><em>0</em><em>+</em><em>x</em><em>=</em><em>1</em><em>3</em><em>0</em><em>5</em>

<em>1</em><em>0</em><em>8</em><em>0</em><em>+</em><em>x=</em><em>1</em><em>3</em><em>0</em><em>5</em>

<em>x=</em><em>1</em><em>3</em><em>0</em><em>5</em><em>-</em><em>1</em><em>0</em><em>8</em><em>0</em>

<em>=</em><em>2</em><em>2</em><em>5</em>

<em>therefore</em><em> </em><em>the </em><em>third </em><em>number </em><em>is </em><em>2</em><em>2</em><em>5</em><em>,</em><em>you </em><em>can </em><em>prove </em><em>it </em><em>by </em><em>adding</em><em> </em><em>the </em><em>three </em><em>to </em><em>see </em><em>whether</em><em> you</em><em> </em><em>will </em><em>get </em><em>1</em><em>3</em><em>0</em><em>5</em><em>.</em>

<em>I </em><em>hope</em><em> this</em><em> helps</em>

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