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3 years ago

12

an 8 by 19 ft wall has three 4 by 5 ft windows.the area of the three windows is what percent of the area of the entire wall (inc

luding the windows)?

1 answer:

erica [24]3 years ago

4 0

Answer:

39.5% (3 sf)

Step-by-step explanation:

Area of 1 window: 4×5 = 20 ft²

2 windows: 3×20 = 60ft²

Area of the wall: 8×19 = 152 ft³

Percentage of window area:

60/152 × 100 = 39.47368421%

= 39.5% (3 sf)

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Three men and seven women are waiting to be interviewed for jobs. If they are all selected in random order, find the probabilit

sammy [17]

Answer:

1/50

Step-by-step explanation:

Given that:

Three men: 3
Seven women = 7
Total number of people: 7+3 =10

We need to find the probability that no man will be interviewed until at least two women have been interviewed. So there are two possible probabilities are:

1. One man and two women => P(1 man and 2 women) = 3/10*2/9 = 1/15

2. Three women => P(3 women) = 3/10

Hence, the probability in this situation is: 1/15*3/10 = 1/50

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3 years ago

Wats 3000000000000*30000000000000

Olegator [25]

Answer:

9E+25

Step-by-step explanation:

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2 years ago

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you depsoit the same amount of money in a bank account each month. you deposit a total of $780 in 1 year. How many months does i

Brums [2.3K]

Answer:

35 months

Step-by-step explanation:

devide 780 by 12 because of the 12 months in a year which is 65 then you divide 2275 by 65 which will give you 35 which means that 35 is the number of months.

3 0

2 years ago

Write the sentence as an inequality.<br><br> The sum of twice a number n and 8 is less than 25

wel

Answer:

less than twenty five

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25 - <u>(2n + 8)</u> < the sum of 2 times N plus 8.

Step-by-step explanation:

6 0

3 years ago

3/11 de una caja contiene 18 galletas, cuantas galletas contiene una caja?

Fynjy0 [20]

Answer:

66 galletas

Step-by-step explanation:

Si 3/11 de una caja contiene 18 galletas entonces matematicamente significa que:

$\frac{3}{11}g=18$

Donde g son las galletas, ahora vamos a aislar la variable g:

$\frac{3}{11}g=18\\\\(\frac{11}{3}) \frac{3}{11} g=18 (\frac{11}{3})\\\\g= \frac{198}{3}=66$

Entonces una caja contiene 66 galletas

3 0

3 years ago