The first term of A. P is 5 and the last term is 45 and the sum of all term is 400. find the number of terms and the Common difference. help me plz ​

--- Number of terms

--- Common difference

Explanation:

Given

--- first term

Required

Determine the number of terms (n) and the common difference (d)

The sum of n terms of an AP is:

This gives:

Divide both sides by 25

The nth term of an AP is:

This gives:

Subtract 5 from both sides

Divide both sides by 15

explanation

old disney was more kid oriented as appose to new disney it's more teen oriented.i guess what i'm trying to say is new disney is way more mature and out there then old disney. for instance all you see in new disney is bf/gf drama and old disney it was nothing like that. kids are growing up and as coorpations like disney, nickolden etc they tend to follow what kids follow so they can have more views . therefore   they have inferred   that now days kids want to have relationships and stuff so that's what disney gives them.

i go to the store and buy some cheese,suddenly there was akward silence.   out of no where comes a ninja, and he takes an apple, and chokes the cashier, until he passes out.   the disapeared in a puff of smoke.   the cashier went to the doctor, and everything was fine again.   they all lived happily ever after without anymore ninjas.

the end

go to buy cheese= exposition

akaward silence= rising action

ninja chokes the cashier= climax

cashier goes to the doctor= falling action

they live happily ever after= resolution