okok111
24.04.2020 •
Mathematics
A manufacturer fills an order for 4,200 smart phones. The quality inspector selects a random of 60 phones and finds that 4 are defective. How many smart phones in the order are likely to be defective?
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Ответ:
The answer (i think) would be 210.
Because
4200 / 60 = 70
4 / 70 = .05
4200 x .05 = 210
Ответ:
answer:
1. at 1 month, $5 is spent.
2. at 0 months, $0 is spent.
3. at 4 months, $20 is spent.