natashagarlick natashagarlick
  • 22-10-2020
  • Mathematics
contestada

In an arithmetic sequence, the first term is -8 and the sun of the first 20 term is 790. Find the common difference

Respuesta :

anjumunnisa78
anjumunnisa78 anjumunnisa78
  • 22-10-2020

Answer:

a=-8,s20=790

Step-by-step explanation:

s20=10[-16+19xd]

790/10=-16+19d

79+16=19d

85=19d

d=85/19=5

Answer Link

Otras preguntas

what is the verb phrase in the sentence? i could not read the doctor's handwriting
How does the 10th amendment shown below demonstrate a constitutional provision for limiting government?
What happens to the kinetic energy of the particles of a substance as the substance changes from a liquid to a gas?
How do u work this out
If 10 pens cost £6.50 Find the cost of 4 pens
Is the following conditional true or false? If it is false, find a counterexample. "If two numbers are odd, then their sum is even
How do you graph a fraction in a inequality? Example: 1/4 < p
200 days from march 3 is
how do you find range
find the error julie wrote the rate 108 in 6 weeks as a unit rate find her mistake and correct it