treysnice8
contestada

Hannah has $482.75 in her savings account. She would like her account balance to be more than $1,250 before she buys a cell phone. Hannah plans to save $85.25 a month. How many months will it be until she can buy a cell phone

Respuesta :

mreijepatmat
It's an arithmetic progression with 1st term a =482.75 & common difference

d=85.25

Value of term ranked n; a(n) = a₁ + (n-1)d

1250 = 482.75 + (n-1)(85.25)

solve for n, and you will find n= 10 (months)

Otras preguntas