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dusya [7]
3 years ago
15

Phoebe runs at 12km/h and walks at 5km/h. One afternoon she ran and walked a total of 17km. If she ran for the same length of ti

me as she walked for how long did she run
Mathematics
1 answer:
earnstyle [38]3 years ago
3 0

If correct, it should be one hour. Maybe try and solve it yourself to see if this makes sense

Step-by-step explanation:

Assume the total trip that afternoon took t hours

12(t/2) + 5(t/2) = 17 => t = 2

So she ran for 1 hour.

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If Susie is late for school one particular day of the week, the probability she arrives on time the next day is 0.8. If she arri
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Answer:

0.273 = 27.3% probability that she was late on Thursday.

Step-by-step explanation:

On time on Monday, late on Thursday:

Possible outcomes (tuesday-wednesday-thursday).

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late(0.3 probability) - on time(0.8 probability) - late(0.3 probability)

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Let's take a look at each term separately.

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