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topjm [15]
3 years ago
7

Althea has 100 trading cards and Marlon has 20. Every day Althea gives Marlon one card. Use the equations "c=100-d" and "c=20+d"

to model this situation. Solve the system by substitution. Explain what the solution means in this situation.
Mathematics
1 answer:
Dahasolnce [82]3 years ago
8 0

Answer: 5

Step-by-step explanation: 100/20=5

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