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vovikov84 [41]
2 years ago
12

40 POINTS PLEASE HELP!

Mathematics
1 answer:
laiz [17]2 years ago
5 0

Answer:

1. X3,    15x - 10y = 80   15x - 7y = 51

-17y = 29

2. 8 = 1/60 + a. 8 - 1/60 = 7.98333333333

   6 = 1/80 + b. 6 - 1/80 =  5.9875

                                          13.9708333333

3. I genuinely dont know sorry.

4. Pencil = $0.05. Pen = $1.05

Step-by-step explanation:

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