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zubka84 [21]
3 years ago
7

A stackable CD rack holds 20 CDs and costs $3. Mark has a collection of 120 CDs. How much will it cost him to buy enough racks t

o hold all of his CDs?
Mathematics
1 answer:
elixir [45]3 years ago
5 0

Answer:

You would need $18 total to buy the racks needed.

Step-by-step explanation:

First, every 20 CDs needs a new rack, so you would divide 120 by 20.

120 / 20 = 6 racks

Second, you would multiply the price ($3) of a rack by how many racks needed.

3 * 6 = $18

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Answer:

x = 7

Step-by-step explanation:

The proportion is

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42x = 126 + 168

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Reika [66]

Answer:

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Step-by-step explanation:

I've attached the graphs here:

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Nadusha1986 [10]

Answer:

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Step-by-step explanation:

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