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
Gekata [30.6K]
3 years ago
12

A plane left Kennedy airport on Tuesday morning for an 890 mile 8 hour trip for the first part of the trip the average speed was

105mph for the remainder of the trip the average speed was 115 mph how long did the plane fly at each speed
Mathematics
1 answer:
slega [8]3 years ago
3 0

Answer:

The plane flew for 3 hours at 105mph and 115mph for 5 hours

Step-by-step explanation:

You might be interested in
GIVING BRAINLIST IF YOU HELP FAST!<br><br> What is the value of x?<br> Enter your answer in the box.
slamgirl [31]
The answer to the equation is X= 27
3 0
3 years ago
A set of scores ranges from a high of x = 96 to a low of x = 11. if these scores were placed in a grouped frequency distribution
bazaltina [42]
There is no hard and fast rule to select the class width. It largely depends on our application.However, one thing that should be kept in mind is that the number of classes should neither to be too low nor too high. So keeping this thing in mind, the class width is select.

The range of the data is = Maximum- Minimum = 96 - 11 = 85
10 classes will be most suited for this data.

The class width for each data can be calculated as:
 
Class Width = Range / Number of Classes  = 85/10 = 8.5
Class width is always rounded to nearest next integer. So the class width will be 9 in this case.
 
So, the best value of class width or interval width for the given data will be 9.
8 0
3 years ago
You select 35 marbles from a bag. The results are as follows: 4 blue marbles, 9 green marbles, 7 red marbles, 7 white marbles, a
jarptica [38.1K]
You just take the number of the color of interest (green) and divide by total marbles

9/35 = 0.257 ~~ 25.7%
4 0
2 years ago
Now suppose that bigger cups are ordered and the machine’s mean amount dispensed is set at μ=12. Assuming we can precisely adjus
Elina [12.6K]

Answer:

σ should be adjusted at 0.5.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.

Approximately 95% of the measures are within 2 standard deviations of the mean.

Approximately 99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean 12.

Assuming we can precisely adjust σ, what should we set σtobe so that the actual amount dispensed is between 11 and 13 ounces, 95% of the time?

13 should be 2 standard deviations above the mean of 12, and 11 should be two standard deviations below the mean.

So 1 should be worth two standard deviations. Then

2\sigma = 1

\sigma = \frac{1}{2}

\sigma = 0.5

σ should be adjusted at 0.5.

4 0
2 years ago
Write an equation of the line that passes through the points (-3,-9) and (5,-9)
skelet666 [1.2K]

Answer:

slope of a line m : 0

Equation of line :  y=- 9

Step-by-step explanation:

P1 : (X1 , Y1 ) (-3 , -9)

P2 : (X2 , Y2) (5 , -9)

Slope of line (m) is caculated as ,

m = ( y2-y1)/(x2 - x1)

m = (-9 - (-9))/(5 - (-3))

m = 0

equation of line  : y = mx+b

using P1 (-3 , -9)

= > (-9) = (0)(-3) + b

= > -9 = b

hence b = -9

equation of Line is

y = -9

8 0
3 years ago
Other questions:
  • Gabrielle took a Spanish test with 50 questions and answered 44 of them correctly. What percent of the questions did Gabrielle a
    14·2 answers
  • Jesus can wash 6 cars in 40 minutes. At this rate, how many cars can Jesus<br> wash in 4 hours?
    8·1 answer
  • Brainliest,plz help
    9·1 answer
  • If
    8·1 answer
  • Blake took out a 20-year loan for $195,000 at 2.4% interest, compounded
    5·2 answers
  • Convert the measurement 479cm
    6·2 answers
  • PLEASE HURRY I WILL MARK AS BRAINLIEST!!!!!
    10·2 answers
  • The game room of the youth center needs carpet.sweet t found that the room measures 12 inches by 8 inches on the blueprint.if th
    11·1 answer
  • Please help! I will give Brainliest!
    9·2 answers
  • A research organization reported that 41 percent of adults who were asked to describe their day responded that they were having
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!