1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lunna [17]
3 years ago
11

An airplane is at 32,000 feet above sea level and descends at an average rate of 1,000 feet per minute. How many minutes will it

take for the airplane to land at an airport 3,000 feet above sea level ?
Mathematics
2 answers:
garik1379 [7]3 years ago
6 0

An airplane is at 32,000 feet above sea level and descends at an average rate of 1,000 feet per minute. How many minutes will it take for the airplane to land at an airport 3,000 feet above sea level ?

It will take 29 minutes for it to land 3,000 feet above sea level

cause 32-3=29

 

katrin [286]3 years ago
5 0

1 min.=1000f

32min=32000f (exactly at sea level)

32000-3000=2900

2900=29 min

it will take 29 minutes

You might be interested in
A candle burns down at the rate of 0.5 inches per hour. The original height of the candle was 8 inches.
11111nata11111 [884]

Answer: PART A.

y= remaining height of candle

x= rate the candle burns down in inches per hour

8= original height of candle

the function would be y=8- 0.5x because the candle starts at a height of 8 feet and loses half an inch per hour.

You can use this function to create ordered pairs by putting in number at x which indicates the time:

x=1

y=8- (.5×1)= 7.5

(1, 7.5)

you can then do this for other numbers and get:

(2, 7.0) (3, 6.5) (4, 6.0) (5, 5.5) (6, 5.0)

PART B.

This equation is a function because all of the x-values had different y-values as seen in the coordinates (1, 7.5) (2, 7.0) (3, 6.5) (4, 6.0) (5, 5.5) (6, 5.0)  

PART C.

If the rate was 0.4 inches an hour, it would still be a function because the rate is the only thing that changed making the new function y= 8- 0.4x.This equation would make coordinates of (0,8) (1, 7.6) (2, 7.2) (3, 6.8) and so on with each x value creating a different y value.

Step-by-step explanation: hope this helps

3 0
3 years ago
A farmer believes that the yields of his tomato plants have a normal distribution with an average yield of 11 lbs and a standard
AnnyKZ [126]
Given:
mean, μ = 11 lb
Std. deviation, σ = 2.1

Let x =  the weight that separates the top 5% of the crop.
The z-score is
z = (x - μ)/σ 
   = (x - 11)/2.1

From standard z-table for normal distribution,
P(z=1.645) = 0.95
 
Therefore
(x - 11)/2.1 = 1.645
x - 11 = 1.645/2.1 = 0.7833
x = 11.783

Answer:  11.8 lb (nearest tenth)
5 0
3 years ago
Meteorologists look for weather trends across US states in the same geographical region. Kentucky and Illinois share a border. T
olya-2409 [2.1K]

The average annual temperatures (°F) from 1991 to 2000 for Kentucky were 57.5, 55.1, 52.2, 55.6, 55.6, 54.4, 54.5, 58.3, 57.3, and 55.7.

We have to evaluate the measures of center.

Firstly, we will calculate the mean.

Mean = (Sum of all the observations)/ (Total number of observations)

Mean =  \frac{57.5+55.1+52.2+55.6+55.6+54.4+54.5+58.3+57.3+55.7}{10}

= \frac{556.2}{10}

= 55.62

Now, we will calculate mode.

Mode is a statistical term that refers to the most frequently occurring number found in a set of numbers.

Consider the data 57.5, 55.1, 52.2, 55.6, 55.6, 54.4, 54.5, 58.3, 57.3, and 55.7.

Mode = 55.6

Now, we will calculate the median.

Firstly, we will arrange in the ascending order.

52.2, 54.4, 54.4,55.1 ,55.6, 55.6, 55.7, 57.3, 57.5, 58.3

Since there are 10 terms.

Median = \frac{n}{2}th observation

Median = 5th observation.

Since, the 5th observation is 55.6.

Therefore, the median is 55.6

5 0
4 years ago
Read 2 more answers
A submarine cruised below the surface of the water. During a training exercise, it made 6 dives, each time descending 35 feet mo
Brut [27]

Answer:

68 feet

Step-by-step explanation:

A submarine cruised  below the surface of the water

During training exercise, each time descending= 45 feet

Number of dives= 4

Total distance he descended= 45×4 feet

Total distance he descended= 180 feet

Then, it rose by= 112 feet

Now , the distance he is at below the surface if water= 180- 112

The distance he is at below the surface if water= 68 feet

Now, he is at 68 feet below the surface of the Earth

Hence, the correct answer is 68 feet

Step-by-step explanation:

3 0
4 years ago
A bus covers a distance of 2.45 km in 2 min. What is the speed of bus?​
Vladimir [108]

Answer:

The speed of the bus is 74.242 kilometers per hour.

Step-by-step explanation:

Let suppose that bus runs at constant speed and that speed is measured in kilometers per hour. Then, the speed of the bus (v), in kiometers per hour, is determined by following kinematic expression:

v = \frac{s}{t} (1)

Where:

s - Travelled distance, in kilometers.

t - Time, in hours.

If we know that s = 2.45\,km and t = 0.033\,h, then the speed of the bus is:

v = \frac{s}{t}

v = 74.242\,\frac{km}{h}

The speed of the bus is 74.242 kilometers per hour.

7 0
3 years ago
Other questions:
  • You have two summer jobs. At the Burger Palace you earn $8 per hour. At the community center you teach soccer clinics for $10 pe
    8·1 answer
  • Jackie’s report is 5 pages longer than half the number of pages in Kane’s report. There are 14 pages in Kane’s report. How many
    13·2 answers
  • Igualacion. <br><br>x-y=3. 2x-3y=4​
    10·1 answer
  • Evelina took 50 people fishing each day last week. The table shows the number of fish the group caught each day.
    11·1 answer
  • Please I need this answer with working... <br> Log 91 - Log 13 /Log 245 - Log 5
    13·2 answers
  • Bradey spent 10 minutes per day washing dishes how many minutes did he spend washing dishes in all 4 weeks
    13·2 answers
  • A rectangular pool is 40 feet by 20 feet. The portion of the pool that is reserved for recreational swimming is 20 ft by 10 ft.
    5·2 answers
  • Find the domain and range for f(x)=pi cos(x)
    8·1 answer
  • Given an absolute value function f(x)=|x|, what is the effect of adding a constant k to the function?
    9·1 answer
  • A ball is dropped from a helicopter 100m from the ground. As the ball falls, the magnitude of it's associated velocity is
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!