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rjkz [21]
3 years ago
14

Justin is considering two websites for downloading music.The costs are detailed here.

Mathematics
1 answer:
solniwko [45]3 years ago
3 0

Answer:

Website 1: Y=1.5x+30

Website 2: Y=2x

Step-by-step explanation:

Website 1 has upfront cost of $30.

The cost of download will be $1.5 per download

Total cost will be 1.5X+30

Where in for Website 2, it will be multiplied by $2

so Y=2X

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The relation 2+4+6+...+2n = n^2+n has to be proved.

If n = 1, the right hand side is equal to 2*1 = 2 and the left hand side is equal to 1^1 + 1 = 1 + 1 = 2

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