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3 years ago

5

A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 45.0and 55.0

minutes. Find the probability that a given class period runs less than 51.25 minutes.

1 answer:

fenix001 [56]3 years ago

4 0

The required probability is:
(51.25 - 45)/(55 - 45)=0.625

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Simplify each expression by combining like terms. <br>7a - 6 + 8a

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3 years ago

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neonofarm [45]

Answer:

Rose bought 14 packages of granola bars.

Step-by-step explanation:

Total bill = 1 bag of potatoes + x amount of packages of granola bars

Total bill = $74.25

1 bag of potatoes = $6.00

1 package of granola bar = 5.25

We set the equation to:

74.25 = 6.00 + 5.25x

Subtract 6.00 from both sides:

68.25 = 5.25x

Divide both sides by 5.25 to leave x by itself

68.25/5.25 = 5.25x/5.25

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This means Rose bought 13 packages of granola bars.

Let's recheck our work by inputting x = 13 into the equation:

74.25 = 6.00 + 5.25(13)

74.25 = 6.00 + 68.25

74.25 = 74.25

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2 years ago

The cost of a candy bar in a vending machine is $0.95. The cost of a bottle of water in the same machine is $1.25. Jamie has $25

Mrrafil [7]

Answer:

The answer is $16.45

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