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a digital music service offers two subscription plans. The first has a $9 membership fee and charges $1 per download. The second has a $25 membership fee and charges $.50 per download. How many songs must you download for the second plan to cost less than the first plan?

Respuesta :

calculista

Let

x------> number of download

y------> the cost

we know that

The first plan

y=9+1*x

The second plan

y=25+0.50*x

using a graph tool

see the attached figure

for x=32 downloads the cost is the same in both plans

for x> 32 downloads the cost of the second plan is less than the the cost of the first plan

therefore

the answer is

the number of downloads must be greater than 32

Ver imagen calculista

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