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Katarina [22]
3 years ago
9

When tossing 2 coins, the probability of getting exactly 1 tail is 1/3. A- true B- false

Mathematics
2 answers:
Ghella [55]3 years ago
3 0
The answer is b. False
Serhud [2]3 years ago
3 0

The answer is B false

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<h3>12 children</h3>

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Olivia family drove to Disney land For spring break. Her mom and dad shared the driving duties for a total of 14 hours. her mom
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Mom drove for 11 hours.

Dad drove for 3 hours.

<u>Step-by-step explanation</u>:

  • Total hours = 14 hours
  • Total distance = 895 miles
  • Mom drove a speed of 65 mph
  • Dad drove a speed of 60 mph

Let 'x' be the number of hours drove by mom.

Let 'y' be the number of hours drove by dad.

x + y = 14     ---------------(1)

65x + 60y = 895  ---------(2)

Multiply eq(1) by 60 and subtract eq(2) from (1),

60x + 60y = 840

-(<u>65x + 60y = 895</u>)

 <u> -5x   = -55    </u>

x = 55/5

x = 11

∴ Mom drove for 11 hours.

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y = 3

∴ Dad drove for 3 hours.

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The numbers can be 31, 37, 41, 47, 53, and 59.Hope this helps
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