tylernimmo tylernimmo

30-08-2018
Mathematics

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a disk costs 3 more then a tape role bought five disks and two tapes. the total cost was 120

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me72003 me72003

30-08-2018

5(x+3)+2x=120
5x+15+2x=120
7x+15=120
7x=105
x=15
Tape cost $15 disks cost $18

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