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Galina-37 [17]
3 years ago
15

Fran started practicing her clarinet at 3:30 pm and finished at 5:45 pm. how long did she practice?

Mathematics
2 answers:
masya89 [10]3 years ago
8 0

Answer:

2 hours and 15 minutes

Step-by-step explanation:

5:45-3:30 = 2:15

yulyashka [42]3 years ago
7 0

Answer:

2 hours and 15 minutes

Step-by-step explanation:

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At a self-service gas station, 40% of customers pump regular gas, 35% pump midgrade, and 25% pump premium gas. Of those who pump
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Answer:

0.150,0.595

Step-by-step explanation:

Given that at a self-service gas station, 40% of customers pump regular gas, 35% pump midgrade, and 25% pump premium gas. Of those who pump regular, 30% pay at least $30. Of those who pump midgrade, 50% pay at least $30. And of those who pump premium, 60% pay at least $30.

               Regular gas          Midgrade         Premium gas      Total

Percent      40                            35                     25                   100

atleast 30   30%                         50%                 60%

a) The   probability that the next customer pumps premium gas and pays at least $30

=0.25*0.60\\=0.150

b)        the probability that the next customer pays at least $30

= P(regular and pays atleast 30%)+P(premium and pays atleast 30%)+P(midgrade and       pays atleast 30%)

=0.40*0.30+0.35*0.50+0.25*0.60\\=0.12+0.175+0.30\\=0.595                  

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3 years ago
5 5/11+8 7/11 equals
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<em>14.0909090909</em>

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