Abuisness purchases a computer i
system for $3,000. the value
of the system decreases at a rate
of 15% per year. which expotential
function models this situation.

Step-by-step explanation:

A business purchases a computer I  system for $3,000. The value  of the system decreases at a rate  of 15% per year.

Therefore, the yearly valuation decay rate is .

Now, using the exponential function modeling we can write,

Here, V(y) is the valuation of the computer after y years of purchase.

$3000 is the initial value. (Answer)

sine

step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.