A pack of gum costs 75 cents. That is 3 cents less than three times what the pack cost 20 years ago. Which equation could be use d to find the cost of the gum 20 years ago?
2 answers:
The answer to your question is: .75 = 3x - .03 How to solve it: x = the cost of a pack of gum twenty years ago .75 = 3x - .03 + .03 + .03 .78 = 3x / 3 / 3 .26 = x If a pack of gum now costs 75 cents, which is 3 cents less than three times what a pack would have cost 20 years ago, then a pack of gum would have cost 26 cents.
Answer:
C) 3x - 0.03 = 0.75
Step-by-step explanation:
i got it right
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Step-by-step explanation:
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