How many terms of the arithmetic sequence {1,3,5,7...} will give you a sum of 961?

Mathematics

1 answer:

alexandr402 [8]3 years ago

4 0

Answer:

136 terms will give you the sum 961

Step-by-step explanation:

I took[1,3,5,7... ] and times it by numbers until I got that awnser. I hope i understood the question right.¯\_(ツ)_/¯

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Hello!

First, let's write the problem.
$3\left(x-2\right)+2\left(x+1\right)=-14$
Apply the distributive property on the left side of the equation.
$=3x-6+2x+2$
Add like terms.
$=5x-4$
Let's plug that in into the original equation.
$5x-4=-14$
Add 4 to both sides.
$5x-4+4=-14+4$
$5x=-10$
Divide both sides by 5.
$\frac{5x}{5}=\frac{-10}{5}$

Our final answer would be,
$x=-2$

You can feel free to let me know if you have any questions regarding this!
Thanks!

- TetraFish

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3 years ago

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