Answered

Get the information you need with the help of IDNLearn.com's expert community. Ask your questions and receive reliable, detailed answers from our dedicated community of experts.

2. A record store is going out of business and sold any
cassette for $6.00 and any CD for $12.00. If they sold
20 items for $192, how many of each did they sell?

Sagot :

Wolf1728idn

Answer:

A)  c +  CD = 20

B) 6c + 12CD = 192

Multiplying equation A by -6 we get:

A) -6c -6CD = -120

B) 6c + 12 CD = 192

Adding the equations we get

0 + 6 CD = 72

There are 12 CD's and

c + 12 = 20

There are 8 cassettes

Step-by-step explanation:

Your participation is crucial to us. Keep sharing your knowledge and experiences. Let's create a learning environment that is both enjoyable and beneficial. IDNLearn.com has the answers you need. Thank you for visiting, and we look forward to helping you again soon.