If we want the probability of Fiona waking up before 8am for at least one of the days, we can calculate the probability of she not waking up 8am in both days, and then we do 1 minus this probability.

The probability of she not waking up 8am in one day is (1 - 2/5) = 3/5

The probability of she not waking up 8am in both days is 3/5 * 3/5 = 9/25

So, the probability of Fiona waking up before 8am for at least one of the days is (1 - 9/25) = 16/25 = 0.64 = 64%

8 0

3 years ago

Vivian has $200. She buys 4 dresses for $23 each, 2 pairs of walking shoes for $19 each, and 3 shoulder scarves for $8 each. How

Anton [14]

Answer:

D. $46

Step-by-step explanation:

4 dresses for $23 each = 4 x $23 = $92

2 pairs of walking shoes for $19 each = 2 x $19 = $38

3 shoulder scarves for $8 each = 3 x $8 = $24

Total purchased = $92 + $38 + $24 = $154

Money left over = $200 - $154 = $46

4 0

3 years ago

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