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Semenov [28]
3 years ago
7

Rodrigo practiced playing the guitar 151_3 hours over the past 3 weeks. He practiced for 61_4 hours during the first week and 42

_3 hours during the second week. How much time did Rodrigo spend practicing during the third week? Use the numbers and symbols to write an equation that represents the problem. Then solve the equation. Symbols may be used more than once or not at all.
Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
8 0
47_6
because 61_4 plus 42_3 equal 103_7
now subtract 103_7 and 151_3
you get 47_6 which are the hours he practiced on the third week
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Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

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Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean of 400 and a standard deviation of 60.

This means that \mu = 400, \sigma = 60

z=3

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6 0
3 years ago
I need help solving 12 1/4 - 5 2/3<br> I’m having trouble
Lady_Fox [76]

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3 years ago
9)Rover the dog is on a 60-foot leash. One end of the leash is tied to Rover, who is 2 feet tall. The
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The dog can roam 59.7 feet if the dog is on a 60-foot leash. One end of the leash is tied to Rover, who is 2 feet tall.

<h3>What is the Pythagoras theorem?</h3>

The square of the hypotenuse in a right-angled triangle is equal to the sum of the squares of the other two sides.

We have:

Rover the dog is on a 60-foot leash. One end of the leash is tied to Rover, who is 2 feet tall. The other end of the leash is tied to the top of an 8-foot pole.

After drawing a right-angle triangle from the above information.

Applying Pythagoras' theorem:

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After solving:

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Learn more about Pythagoras' theorem here:

brainly.com/question/21511305

#SPJ1

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