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Nostrana [21]
3 years ago
7

A calculator costs $d. A school buys 90 calculators, and gets a $100 discount for bulk purchasing. How much did the school spend

?​
Mathematics
1 answer:
erik [133]3 years ago
4 0

Answer:

90d-100

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

From the question

Equation 1: 3x-2y= -2

Equation 2: 3x + y = 10

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