Sandy pays $120 for 4 violin lessons. How much does she pay for 10 violin lessons?
2 answers:
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Here's the formula for exponential decay:
(where A = new amount, p = principal (starting) amount, k = rate of decay, and t = time)
Let's use what we know and fill in the expression.
And now we solve for t.
(where A = new amount, p = principal (starting) amount, k = rate of decay, and t = time)
Let's use what we know and fill in the expression.
And now we solve for t.