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inessss [21]
3 years ago
9

Stephanie has 60 tickets to the carnival.She used 3/4 of her 60 tickets to play games.Then she used 1/5 of her remaining tickets

for rides.Next, she gave half of her tickets to her brother. How many tickets did stephanie give to her brother?
Mathematics
1 answer:
Lera25 [3.4K]3 years ago
3 0

Answer:

<h2>She gave her brother 6 tickets</h2>

Step-by-step explanation:

This problem is on fractional numbers.

given that she has 60 tickets

1.She used 3/4 of her tickets to play game

=(3/4)*60

=180/4

=45

She is left with (60-45)= 15 tickets

2. She used 1/5 of her remaining tickets for rides

    =(1/5)*15

   =15/5

   =3

She is left with (15-3)= 12 tickets

3. She gave half of her tickets to her brother.

  = (1/2)*12

  =12/2

 = 6

She gave her brother 6 tickets

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The area between z = 1.74 and z = 1.25<br> Round your answer to three decimal places.
balu736 [363]

Answer:

The area between z = 1.74 and z = 1.25 is of 0.065.

Step-by-step explanation:

Normal Probability Distribution:

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

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

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.

The area between two values of Z is given by the subtraction of the pvalue of the larger value by the smaller.

The area between z = 1.74 and z = 1.25.

This is the pvalue of z = 1.74 subtracted by the pvalue of z = 1.25.

z = 1.74 has a pvalue of 0.959

z = 1.25 has a pvalue of 0.894

0.959 - 0.894 = 0.065

The area between z = 1.74 and z = 1.25 is of 0.065.

5 0
3 years ago
There is 144 ppl in an audiance the ratio of adults to kids is 5 to 3 how many adults are there
Sergio [31]
By addition of the ratio, 5/8 people are adults
144 * 5/8 = 90
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LiRa [457]

48^2+14^2=x^2\\x^2=2500\\x=50

5 0
3 years ago
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aliina [53]

Answer:

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4 0
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Austin's eye-level height is 120 ft above sea level, and Anna's eye level height is 270 ft above sea level. How much further can
9966 [12]

Answer:

C

Step-by-step explanation:

Austin =  \sqrt{ \frac{3h}{2} }  \\  \\ Austin =  \sqrt{ \frac{3(120)}{2} }  \\  \\ Austin =  \sqrt{3(60)}  \\  \\ Austin =  \sqrt{180}  \\  \\ Austin = 6 \sqrt{5}

Ana =  \sqrt{ \frac{3h}{2} }  \\  \\ Ana =  \sqrt{ \frac{ 3(270)}{2} }  \\  \\ Ana =  \sqrt{ 3(135) }  \\  \\ Ana =  \sqrt{405}  \\ Ana = 9 \sqrt{5}

How much further can Anna see to the horizon?

Ana - Austin = 9 \sqrt{5}  - 6 \sqrt{5}  \\ Ana - Austin = 3 \sqrt{5}

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