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jarptica [38.1K]
3 years ago
5

NEED HELP FAST!!!

Mathematics
1 answer:
ZanzabumX [31]3 years ago
3 0
A. 3, $160 because

Y = 50x + 10
Y = 30x + 70

Step 1 substitute your first number (3) for X .
Step 2 Solve . 50(3) = 150 + 10 = 160
30(3) = 90 + 70 = 160 Which Is Your Answer
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umka21 [38]

Answer:

The original price of the book was $12.50

Step-by-step explanation:

3x - 0.2(3x) + 10 = 40
30x - 2(3x) + 100 = 400
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3 0
2 years ago
Tell me how you solved thanks
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