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juin [17]
3 years ago
9

The book link fire department serve 250 dinners. A child’s play it cost 550 and adults play it cost nine dollars. A total of 193

was collected. How many of each type or serve?

Mathematics
1 answer:
sukhopar [10]3 years ago
5 0

Answer:

A total of 160 adult plates and 90 children's plates were sold.

Step-by-step explanation:

Given that the Buck Creek Fire Department served 250 dinners, and that a child's plate costs $ 5.50 while an adult's plate costs $ 9.00, having collected a total of $ 1935, to determine how many dishes of each type were served, the following calculation must be performed:

9 - 5.5 = 3.5

250 x 5.5 = 1,375

1,935 - 1,375 = 560

560 / 3.5 = 160

160 x 9 = 1,440

90 x 5.5 = 495

1,440 + 495 = X

1,935 = X

Thus, a total of 160 adult plates and 90 children's plates were sold.

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The authors of a paper presented a correlation analysis to investigate the relationship between maximal lactate level x and musc
ArbitrLikvidat [17]

Answer:

a) Sample correlation coefficient, r = 0.7411

bi) test statistic, t = 4.102

bii) P-value = 0.000736

Step-by-step explanation:

a) The formula for the sample correlation coefficient is given by the formula:

r = \frac{S_{xy} }{\sqrt{S_{xx} S_{yy} }} }

S_{xx} = 2,648,130.357\\S_{yy} = 36.7376,\\S_{xy} = 7408.225

r = \frac{7408.225}{\sqrt{2648130.357*36.7376} }

r = 0.7511

b)

i) formula for the test statistic is given by the formula:

t = \frac{r\sqrt{n-1} }{\sqrt{1 - r^{2} } }

sample size, n = 4

t = \frac{0.7511\sqrt{14-1} }{\sqrt{1 - 0.7511^{2} } }

t = 4.102

ii) Degree of freedom, df = n -2

df = 14 -2

df = 12

The P-value is calculate from the degree of freedom and the test statistic using excel

P-value =(=TDIST(t,df,tail))

P-value = (=TDIST(4.1,12,1)

P-value = 0.000736

4 0
2 years ago
Divide 36x^3-96x^2+48x by 12x
sergij07 [2.7K]

Answer:

3x^2  - 8x + 4.

Step-by-step explanation:

36x^3 - 96x^2 + 48x

Dividing by 12  term by term:

= 3x^2  - 8x + 4.

5 0
3 years ago
Read 2 more answers
Fractions equivalent to - 9/16
kiruha [24]

Answer:

Equivalent Fractions for 9/16: There are infinity equivalent fractions to 916. See some examples: 916, 1832, 2748, 3664, 4580, 5496, 63112, 72128, 81144, 90160, 99176, 108192, 117208, 126224, 135240, 144256, 153272, 162288, 171304

Step-by-step explanation:

NOT my answer, got it from g0ogle..

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3 years ago
4 + 6x + 5 = 7x Could someone help me? Thanks :) And could you also show how u did it
matrenka [14]

Answer:

x=9

Step-by-step explanation:

combine like terms

4+6x+5=7x

4+5=9

9+6x=7x

to get 6x with 7x subtract 6x from both sides as its positive

6x-6x=0

7x-6x=x

9=x

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3 years ago
A decorative hat is shaped like a cone. The hat has a 7 inch diameter and an 8 inch height.
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Step-by-step explanation:

the answer to this question is 410.29

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