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loris [4]
2 years ago
13

I have 31 stamps total. I have 4 more 1-cent stamps than 8-cent stamps and twice as many one cent stamps as 12 cent stamps. If m

y stamps are worth $1.78 altogether how many one cent stamps do I have?
Mathematics
2 answers:
Marina CMI [18]2 years ago
5 0
The answer is ($1.78) I did the math
wariber [46]2 years ago
3 0

Answer: 14 1-cent stamps (in case anyone else still needs)

Step-by-step explanation:

1-cent stamps=x

8-cent stamps=x-4

12-cent stamp=.5x

x+x-4+.5x=31

2.5x-4=31

2.5x=35

x=14

You can use the $1.78 to double check:

(1*14)+(8*10)+(12*7)

14+80+84=178 cents (or $1.78)

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