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3 years ago

The area of one floor tile is 92.16 square inches.What is the area of a kitchen floor covered with 102 floor tiles?

Mathematics

1 answer:

Nataliya [291]3 years ago

8 0

Answer:

9400.32 square inches

Step-by-step explanation:

The area of one floor tiles is 92.16

The area of a kitchen floor covered with 102 floor tiles can be calculated as follows

= 102 × 92.16

= 9400.32 square inches

Hence the area is 9400.32 square inches

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Read 2 more answers

At the movie theatre, child admission is $6.40 and adult admission is $9.90. On Friday, 154 tickets were sold for a total sales

Minchanka [31]

6.40x+9.90(154-x)=1230.90
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3 years ago

3. From the table below, find Prof. Xin expected value of lateness. (5 points) Lateness P(Lateness) On Time 4/5 1 Hour Late 1/10

wariber [46]

Answer:

The expected value of lateness $\frac{7}{20}$ hours.

Step-by-step explanation:

The probability distribution of lateness is as follows:

Lateness P (Lateness)

On Time 4/5

1 Hour Late 1/10

2 Hours Late 1/20

3 Hours Late 1/20

The formula of expected value of a random variable is:

$E(X)=\sum x\cdot P(X=x)$

Compute the expected value of lateness as follows:

$E(X)=\sum x\cdot P(X=x)$

$=(0\times \frac{4}{5})+(1\times \frac{1}{10})+(2\times \frac{1}{20})+(3\times \frac{1}{20})\\\\=0+\frac{1}{10}+\frac{1}{10}+\frac{3}{20}\\\\=\frac{2+2+3}{20}\\\\=\frac{7}{20}$

Thus, the expected value of lateness $\frac{7}{20}$ hours.

8 0

3 years ago

Please help with this problem

Dennis_Churaev [7]

Answer:

that looks hard

Step-by-step explanation:

that's what she said

lol

4 0

3 years ago