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Rus_ich [418]
3 years ago
10

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?
Mathematics
2 answers:
Aleks [24]3 years ago
6 0
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. 
Talja [164]3 years ago
6 0

Answer:

C) 3x - 0.03 = 0.75

Step-by-step explanation:

i got it right

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