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3 years ago

Arithmetic Series Word Problems

Mathematics

1 answer:

MrRa [10]3 years ago

6 0

Answer:

$210 dollars

Step-by-step explanation:

we have to do 15 x12 first=180

plus 30=210

please tell me if this helped at all :)

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Arrange the following polynomial into descending order and identify the 3rd term.

ziro4ka [17]

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andreev551 [17]

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3 years ago

Teen Court is a juvenile diversion program designed to circumvent the formal processing of first-time juvenile offenders within

valentinak56 [21]

Answer:

Z-statistic = 1.4017 < 1.96 at 0.05 level of significance

Null hypothesis is accepted

The data suggest that the true proportion of Teen Court individuals who recidivate during the specified follow-up period differs from the proportion of Department of Juvenile Services individuals

Step-by-step explanation:

Step(i):-

Given first sample size (n₁ ) = 57

Of the 57 Teen Court individuals, 18 subsequently recidivated during the 18-month follow-up period

First sample proportion

$p^{-} _{1} = \frac{x_{1} }{n_{1} } = \frac{18}{57} =0.3157$

Second sample proportion

$p^{-} _{2} = \frac{x_{2} }{n_{2} } = \frac{11}{54} =0.2037$

Null Hypothesis : p₁⁻ = p₂⁻

Alternative Hypothesis : p₁⁻ ≠ p₂⁻

Step(ii):-

Test statistic

$Z = \frac{p_{1} ^{-} -p^{-} _{2} }{\sqrt{PQ(\frac{1}{n_{1} } +\frac{1}{n_{2} } )} }$

where

$P = \frac{n_{1}p^{-} _{1} +n_{2} p^{-} _{2} }{n_{1} +n_{2} }$

$P = \frac{57 X0.3157+0.2037X54}{54+57} = 0.2612$

Q = 1 - P = 1 - 0.2612 = 0.7387

$Z = \frac{0.3157-0.2037}{\sqrt{0.2612 X0.7387 (\frac{1}{57} +\frac{1}{54} )} }$

Z = 1.4017

Level of significance ∝ =0.05

The tabulated value Z₀.₀₅ = 1.96

Z-statistic = 1.4017 < 1.96 at 0.05 level of significance

Null hypothesis is accepted

The data suggest that the true proportion of Teen Court individuals who recidivate during the specified follow-up period differs from the proportion of Department of Juvenile Services individuals

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3 years ago

Thomas buys a case of bottled water.A case contains 36 bottles of water and cost $4.69. Thomas will sell each bottle of water fo

steposvetlana [31]

Answer:

$22.31

Step-by-step explanation:

At $0.75 per bottle for 36 bottles, Thomas will have sales of ...

$0.75 × 36 = $27.00

His cost is $4.69, so his earnings will be ...

$27.00 -4.69 = $22.31

Thomas will earn $22.31 in profit if he sells all the bottles of water.

_____

He only needs to sell 7 bottles to cover his cost.

8 0

3 years ago

What is the value of x in the equation 1,331x3 − 216 = 0?

weeeeeb [17]

1,331x^3 − 216 = 0
1,331x^3 = 216
cube root both sides
11x = 6
x = 6/11

3 0

4 years ago