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Volgvan
3 years ago
7

A 20-foot ladder is leaning against a building. If the bottom of the ladder is sliding along the pavement directly away from the

building at 2 ?feet/second, how fast is the top of the ladder moving down when the foot of the ladder is 3 feet from the? wall?The top of the ladder is moving down at a rate of _____ ?feet/second when the foot of the ladder is 3 feet from the wall. ?(Round to the nearest thousandth as? needed.)

Mathematics
1 answer:
zaharov [31]3 years ago
7 0

Answer: The top of the ladder is moving down at a rate of 0.303 feet / second

Step-by-step explanation: Please see the attachments below

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What is the range of 149 111 171 166 152 129 162 144
valentinak56 [21]

Answer:

range = bigger number-smaller number

biggest number=166

smallest number=111

166-111

=55

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A drawer contains 4 white socks, 5 black socks, and 3 brown socks. Find the probability that...
IRINA_888 [86]

Answer:

5/12

7/12

125/36 = 3,47%

50/11 = 4,54%

Step-by-step explanation:

Probability a black sock is selected when a person chooses 1 sock = 5/12

Probability a white or brown sock is selected when a person chooses 1 sock =

7/12

Probability  a person chooses 3 socks and selects a white first, a black second, and a brown last if the socks are replace = (4/12 * 5/12 * 3/12)*100 =125/36 = 3,47%

Pobability  a person chooses 3 socks and selects a white first, a black second, and a brown last if the socks are NOT replace = (4/12 * 5/11 * 3/ 10)*100 = 50/11 = 4,54%

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3 years ago
By careful reorganization, a company was able to reduce the cost of operation from $21,840 per month to $17,190 per month. By wh
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Subtract the 17190 from the 21840. you get 4650. 4650 divided by 21840 is 0.21. The percent decrease is 21%
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3 years ago
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6) What is 13% of 33.39?
icang [17]

Answer:

1. We assume, that the number 33.39 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 33.39 is 100%, so we can write it down as 33.39=100%.

4. We know, that x is 13% of the output value, so we can write it down as x=13%.

5. Now we have two simple equations:

1) 33.39=100%

2) x=13%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

33.39/x=100%/13%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 13% of 33.39

33.39/x=100/13

(33.39/x)*x=(100/13)*x       - we multiply both sides of the equation by x

33.39=7.6923076923077*x       - we divide both sides of the equation by (7.6923076923077) to get x

33.39/7.6923076923077=x

4.3407=x

x=4.3407

now we have:

13% of 33.39=4.3407

Step-by-step explanation:

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In 2006, the population of Tewksbury, Rhode Island was 25,000, and it was growing at an annual rate of 2.2%. What is the growth
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