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jek_recluse [69]
2 years ago
10

Let n be equal to 156% of 70. Which of the following proportions is true?

Mathematics
1 answer:
dimulka [17.4K]2 years ago
5 0

Step-by-step explanation:

d. 156/100=n/70

hope that helps only one I think that makes sense

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3 years ago
Use the reciprocal property to solve for x:
Natali5045456 [20]

Answer:

The answer is 1800.

Step-by-step explanation:

3/540 = 10/x

3x = 540 × 10

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3 years ago
Sergio is working on a research project involving the ages of students at Brooklyn College. After interviewing 500 students, he
Zinaida [17]

Answer:

The probability of of a randomly chosen student being exactly 21 years old.

= 1.293

Step-by-step explanation:

<u><em>Step(i):-</em></u>

<em>Given Population  size n = 500</em>

<em>Mean of the Population = 20 years and 6 months</em>

<em>                                        = </em>20 + \frac{6}{12} = 20 +0.5 = 20.5 years<em></em>

<em>Standard deviation of the Population = 2 years</em>

Let 'X' be the range of ages of the students on campus follows a normal distribution

Let   x =21

            Z = \frac{x-mean}{S.D}

            Z = \frac{x-mean}{S.D} = \frac{21-20.6}{2} =0.2

<em>The probability of a randomly chosen student being exactly 21 years old.</em>

<em>P( Z≤21) =  0.5 + A( 0.2) </em>

            = 0.5 +0.793

           =  1.293

           

6 0
3 years ago
Liz wants to buy her favorite musical group’s new CD. The CD costs $15.24, including tax. Liz gives the store clerk a twenty-dol
liraira [26]
$20.00 - 15.24 = 4.76
4.76 Is the change liz get back from a twenty dollar bill.
8 0
3 years ago
Read 2 more answers
Directions: Select all correct answers.
Akimi4 [234]

Answer:

Step-by-step explanation:

6 0
2 years ago
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