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3 years ago

The quotient of a number and 4, minus 1, equals 5/4. find the number

1 answer:

3 0

Hope this helps
(x/4) - 3 = 5/4

x/4 - 12/4 = 5/4

x - 12 = 5

x = 17

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A sport analyst wants to determine the mean salary of a Baseball player for 2015. He believes an estimate of this average salary

djyliett [7]

Answer:

The large sample size 'n' = 199.6569≅ 200

Step-by-step explanation:

Step(i):-

Given Standard deviation of salary for all baseball players for 2015 is about $5,478,384.55

Standard deviation of of salary for all baseball players for 2015

(S.D ) σ = $5,478,384.55

Given estimate of this average salary for all baseball players for 2015

= $497,000

Given Margin of error of error is = $497,000

Level of significance ∝ = 80%

The critical value Z₀.₂₀ = 1.282

Step(ii):-

Margin of error of error is determined by

$M.E = \frac{Z_{0.20} S.D}{\sqrt{n} }$

$497,000 = \frac{1.282 X 5,478,384.55}{\sqrt{n} }$

Cross multiplication , we get

$\sqrt{n} = \frac{1.282 X 5,478,384.55}{497,000 }$

On calculation , we get

√n = 14.13

Squaring on both sides, we get

n = 199.6569

Conclusion:-

The large sample size 'n' = 199.6569≅ 200

7 0

3 years ago

Use the distance to find the distance between the points A (-3,7 and B (-2,5).

Eva8 [605]

Step-by-step explanation:

1 2 3 4 5

6 0

3 years ago

Thrice a number decreased by 5 exceeds twice the number by a unit find the number

viktelen [127]

Working attached below. Hope this helps! Any questions let me know :)

6 0

2 years ago

Plz answer both if you can

Harlamova29_29 [7]

I hope this helps you

130+x-5+x-35+x+30+75=360

3x=360-195

3x=165

x=55

m (B)=55-5=50

7 0

3 years ago

-4x + 7(x + (-2)) > -18

professor190 [17]

-4x+7x-14
3x-14>-18
3x>-4
X>-4/3

3 0

3 years ago

The quotient of a number and 4​, minus 1​, equals 5/4. find the number

The quotient of a number and 4, minus 1, equals 5/4. find the number