suh53 suh53
  • 05-08-2020
  • Mathematics
contestada

What is numbers 1-30 added all together

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thepingu
thepingu thepingu
  • 05-08-2020

Answer:

465

Step-by-step explanation:

The sum of consecutive numbers has a formula, and it's

[tex]\frac{n(n+1)}{2}[/tex].

Where n is the amount of numbers.

From 1-30, it's 30 numbers, so:

[tex]\frac{30(30+1)}{2} \\\\\frac{30(31)}{2} \\\\\frac{930)}{2} \\\\\\465[/tex]

Hope this helped!

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sarahlyons15
sarahlyons15 sarahlyons15
  • 05-08-2020
The numbers 1-30 added together is 465
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