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Pachacha [2.7K]

4 years ago

6

You have $40 in a savings account and you deposit an equal amount into your account each week. after 8 weeks the account holds $

128. write an equation that represents the amount yy (in dollars) of money in the account after xx weeks.

1 answer:

Vadim26 [7]4 years ago

4 0

40×x^8=128
x^8=128÷40
x^8=3.2
X=1.156494986 (8th root of 3.2)

40×1.156494986^xx=yy

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