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8. A school official calculated that the school bus arrives by 8 a.m. 90% of the time. If the bus runs 200 days, on how many days can the school official expect it to arrive aft…

8. A school official calculated that the school bus arrives by 8 a.m. 90% of the time. If the bus runs 200 days, on how many days can the school official expect it to arrive aft…
asked 188k views
9 votes
8. A school official calculated that the school bus arrives by 8 a.m. 90% of the time. If the

bus runs 200 days, on how many days can the school official expect it to arrive after
8 a.m.?

asked
User Abe
by
9.0k points

1 Answer

6 votes

Answer:

20 days of the 200 total days

Explanation:

1. 200/100=2

2. 2x90=180

3. 200-180=20

answered
User Jonalm
by
7.9k points
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