chhantyalniruta544 chhantyalniruta544
  • 01-08-2021
  • Mathematics
contestada

how many terms of the series 1+4+7........will add up to 425?
​

Respuesta :

Аноним Аноним
  • 02-08-2021

Answer:

17 terms

Step-by-step explanation:

Let the number of terms be n which will add up to 425.

So, 425=(n/2)*(2+(n-1)*3). 850=n*(3n-1), n=17 or - 50/3 but n can't be negative, so the answer is n=17

Answer Link

Otras preguntas

why would the present shape of the continents not fit perfectly into the shape of a supercontinent
What strategy can provide an opportunity to learn a great deal from a group of peers?
How many people died in the nevado del ruiz eruption in november 13 1985
How do you divide 11.25 by 1.24
Who asked Lewis and Clark to lead an exploration of the western United States?
is the gcf os a pair of numbers ever greater than both numbers ? explain with an example.
tim makes 80 gallons of paint by mixing 48 gallons of green paint with 32 gallons of blue paint what part of every gallon is from green paint.
If it takes a man a week to walk a fortnight, and bacon is ten pence a loaf. How much cloth to make a humpty backed giraffe a waist coat
unlike carbohydrates and fats, protein contain the element?
In which region was Brussels,London,Paris, and Madrid located?