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3 years ago

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4.) A concert charges $24.50 per daily adult ticket and $13.75 per child's ticket. A group of 90 people paid $1560.00 for ticket

s. Write a system of equations that could be used to find x, the number of adult tickets purchased, and y, the number of children's tickets purchased?

1 answer:

riadik2000 [5.3K]3 years ago

6 0

Do 25y + 65x= the answer

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In a study of 806 randomly selected medical malpracticeâ lawsuits, it was found that 513 of them were dropped or dismissed. Use

Contact [7]

Solution :

$H_0: p = 0.5$

$H_a: p > 0.5$

Alpha, α = 0.01

The sample proportion is :

$p'=\frac{x}{n}$

$=\frac{513}{806}$

= 0.636

Test statistics, $z=\frac{p'-p}{\sqrt{\frac{pq}{n}}}$

$z=\frac{0.636-0.5}{\sqrt{\frac{0.5\times 0.5}{806}}}$

$z=\frac{0.136}{0.0176}$

z = 7.727

The p value = 0.00001

Here we observe that p value is less than α, and so we reject the hypothesis $H_0$ .

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3 years ago

Peter purchases a baseball card for $150 as an investment. His research tells him that the value of

creativ13 [48]

Answer:

6 years

Step-by-step explanation:

Given

$Initial\ Investment = 150$

$Ratio = double$

Required

When will it get to 4000

This question illustrates a geometric progression and will be solved using:

$T_n = ar^{n-1}$

In this case;

$T_n = 4000$

$r = double = 2$

$a = 150$

So, we're to solve for n

$4000 = 150 * 2^{n - 1}$

Divide through by 150

$\frac{4000}{150} = 2^{n-1}$

$26.67= 2^{n-1}$

Take Log of both sides

$Log26.67= Log2^{n-1}$

Apply law of logarithm

$Log26.67= ({n-1})Log2$

Take Log values

$1.42602301569 = (n - 1) * 0.30102999566$

Make n - 1 the subject

$n - 1 = \frac{1.42602301569}{0.30102999566}$

$n - 1 = 4.73714591984$

Add 2 to both sides

$n = 1 + 4.73714591984$

$n = 5.73714591984$

$n = 6$ (Approximated)

<em>Hence, it'll take 6 years</em>

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3 years ago

GeoA Test 3-1 3-2 Version 1

prohojiy [21]

I don’t see anything what do you need help with?

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3 years ago

In a class of 6060 students, 4040 are democrats, 1010 are business majors, and 33 of the business majors are democrats. if on

iVinArrow [24]

100(whole class is 100%) / 6060(number of students total) = any random student chance
0.0165
A) for democrats multiply chance of any random student with number of democrats
0.0165×4040=66.66666...
B) for business majors, multiply that chance with number of business majors
0.0165×1010=16.66666...
C) for both business major and democrat multiply chance with numbers of students who are both
0.0165×33=0.544...

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3 years ago

7652 divided by 12.3

Lady_Fox [76]

Answer:

The answer to the question provided is 622.1138211.

Rounded to the nearest tenth is 622.1

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3 years ago