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2 years ago

the conference room of a hotel measures 40 ft by 50 ft has a 12-foot ceiling what is the area of the walls

Mathematics

1 answer:

Softa [21]2 years ago

5 0

Answer:

The area of the walls is $2,160\ ft^{2}$

Step-by-step explanation:

we know that

The area of the walls is equal to the perimeter of the conference room multiplied by the height of the ceiling

$A=2[40+50](12)=2,160\ ft^{2}$

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2 years ago

A bag contains 3 red, 4 blue, and 6 yellow marbles. One marble is selected at a time, and once a marble is selected, it is not r

astraxan [27]

The probability of choosing two yellow marbles = 5/26

Step-by-step explanation:

Step 1 :

Given

Total number of marbles in the bag = 13 marbles

Number of yellow marbles = 6.

We choose 2 marbles from the bag without replacing and need to determine the probability that both are yellow.

Step 2 :

Probability of finding yellow marble in the first try = Number of yellow marbles / Total number of marbles = $\frac{6}{13}$

Once the yellow marble is selected we have 5 yellow marbles among 12 remaining marbles in the bag.

Probability of finding yellow marble in the second try = Number of yellow marbles / Total number of marbles = $\frac{5}{12}$

Step 3:

P(yellow in first 2 tries) = P(yellow in first try) * P(yellow in second try)

P(yellow in first 2 tries) = $\frac{6}{13} * \frac{5}{12}$ = $\frac{5}{26}$

Step 4:

Answer:

The probability of choosing two yellow marbles = 5/26

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3 years ago

What is the value of 7x^2 + 3x + 4 when x=2?

Nonamiya [84]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

15 crackers weigh 69 grams. how many kilograms is this?

Marrrta [24]

Answer:

$0.069\ kg$

Step-by-step explanation:

we know that

1 kg=1,000 g

using proportion

Find out how many kilograms are 69 grams

Let

x -----> the weight in kg

$\frac{1}{1,000}\frac{kg}{g} =\frac{x}{69}\frac{kg}{g}\\\\x=\frac{69}{1,000}\\\\x=0.069\ kg$

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3 years ago

the conference room of a hotel measures 40 ft by 50 ft has a 12-foot ceiling what is the area of the walls​

the conference room of a hotel measures 40 ft by 50 ft has a 12-foot ceiling what is the area of the walls