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soldi70 [24.7K]
3 years ago
7

A hospital cafeteria has 20 tables. 65% of the tables have 6 chairs at each table. The remaining 35% of the tables have 4 chairs

at each table. Complete the model. Then complete the statements to find the total number of chairs in the hospital cafeteria.
Mathematics
1 answer:
rosijanka [135]3 years ago
6 0

Total number of tables in the cafeteria = 20

65% of the tables = \frac{65}{100} (20)

=\frac{13}{20}(20)

= 13

Each table has 6 chairs.

So, total number of chairs that 65% of the tables have = 13 × 6 = 78.

35% of the tables = \frac{35}{100} (20)

=\frac{7}{20} (20)

= 7

Each table has 4 chairs.

So, total number of chairs that the remaining 35% of the tables have = 7 × 4 = 28.

Hence, total number of chairs in the hospital cafeteria = 78 + 28 = 106.

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Answer:

The 98% confidence interval estimate of the proportion of adults who use social media is (0.56, 0.6034).

Step-by-step explanation:

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98% confidence level

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The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5817 - 2.327\sqrt{\frac{0.5817*4183}{2809}} = 0.56

The upper limit of this interval is:

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The 98% confidence interval estimate of the proportion of adults who use social media is (0.56, 0.6034).

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Y = f(x) = 2^x
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Answer:

The value of f(x) when x=-1 is 0.5

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Step-by-step explanation:

Given that y=f(x)=2^x

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Put x=-1 in the given function f(x)=2^x

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Therefore f(-1)=0.5

The value of f(x) when x=-1 is 0.5

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What is the center of the data?
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Answer:

Median = 13

Step-by-step explanation:

Given

See attachment for dot plot

Required

The center of data

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