ehorton ehorton

16-05-2019
Mathematics

contestada

The given series has 6terms. What is the sum of the terms of the series 10+25+40+...+85
A.) 285

B.) 365

C.) 350

D.) 325

Respuesta :

sqdancefan sqdancefan

23-05-2019

Answer:

A.) 285

Step-by-step explanation:

The sum of an arithmetic series is the sum of the first and last terms multiplied by half the number of terms.

(10 +85)·6/2 = 285 . . . sum of 6 terms

Answer Link

Otras preguntas

steps taken to conserve the flora and fauna of the country ?

increase £680 by 15%

Determine the principal P that must be invested at rate r = 7%, compounded monthly, so that $500,000 will be available for retirement in t = 19 years. (Round yo

Please help simplify with steps

steps taken to conserve the flora and fauna of the country ?

Given that 6x = 7y, find the ratio x:y.

conservation between hitler and gandhiji (10 exchange)

a bank contains 27 coins consisting of dimes and quarters. the coins have a total value of $4.95. Find the number of dimes and quarters in the bank.

What new direction did civil rights leaders take in the mid-1960s?

If the product of a number and -8 is subtracted from the number, the result is 7 more than the number. find the number. Use x for the number. x-(-8x)=