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
Airida [17]
3 years ago
8

In a recent survey of 645 working Americans ages 25-34, the average weekly amount spent on lunch as $44.02 with standard deviati

on $2.81. The weekly amounts are approximately bell-shaped.
a. Estimate the percentage of amounts that were less than $38.40. Round the answer to one decimal place. Approximately % of the amounts were less than $38.40.
b. Estimate the percentage of amounts that are between $41.79 and $47.41.
c. Estimate the percentage of amounts that are at least $38.98.
d. Between what two values will approximately 95% of the amounts be?
Mathematics
1 answer:
harina [27]3 years ago
4 0

Answer:

use photo math it's great and free

You might be interested in
Decimals- do i move the decimal when adding or multiplying
EastWind [94]

Answer:

when adding you just line the decimals up like this, let's say you had to add 1 to 2.58.

2.58

+ <u> 1 .00</u>

3.58

when multiplying you might have to move it, say you had to multiply 1.5 by 2.2. (you don't have to line up the decimals like with addition)

1 .5

<u> </u><u>×</u><u> 2.2</u>

30

<u> </u><u>+</u><u> 300</u>

3.30

1.5 has one decimal place and 2.2 also has one decimal place so you put those 2 decimal places in your answer.

sorry if this is a bit confusing lol

6 0
3 years ago
Plot the set of points and identify the shape. Then find the perimeter of the polygon.
Ivahew [28]

Answer:

P = 40 units

Step-by-step explanation:

P = s + s +s + s

P = 8 + 8 + 12 + 12

P = 40 units

4 0
2 years ago
And Matthew ran a lemonade stand on Saturday they agreed that Matthew would get 60% of the profit because a lemonade stand was h
VladimirAG [237]

Matthew makes $15 money .

<u>Step-by-step explanation</u>:

  • Total profit = $25
  • Matthew gets 60% of the profit.

Therefore, the Matthew would get 60% of 25.

⇒ (60/100)\times25

⇒ 0.6\times25

⇒ $15

6 0
3 years ago
Find x and y. <br><br> please help !
IrinaK [193]

Using linear pairs,

115+5x=180\\\\5x=65\\\\x=\boxed{13}

By the exterior angle theorem,

2y=45+5(13)\\\\2y=45+65\\\\2y=110\\\\y=\boxed{55}

3 0
2 years ago
How much interest is earned on a principle of $864.27 invested at an interest rate of 8% for 3 years? Round to the nearest cent
amid [387]

Answer:

the interest =20.74

whereas the total sum=8850(the sum is the nearest cent)

<h2><em><u>HOPE</u></em><em><u> </u></em><em><u>IT</u></em><em><u> </u></em><em><u>HELPS</u></em><em><u> </u></em><em><u>YO</u></em><em><u>U</u></em></h2>

7 0
3 years ago
Other questions:
  • In this week's episode of the TV show Strange Science Fiction, a metal cube arrives from outer space. Government scientists meas
    11·1 answer
  • The height of Dougal is 1.84 metres. The height of Seb is 1.7 metres. Write the height of Dougal as a fraction of the height of
    6·1 answer
  • Please help thank you.
    5·1 answer
  • When constructing a circle inscribed in a triangle, what is the purpose of constructing a perpendicular segment from the incente
    14·1 answer
  • Can u guys help me plssss it’s due tmw
    12·2 answers
  • How many minutes will it take to travel 2.5 miles if you are walking at 3.7 miles per hour?
    5·1 answer
  • Change the subject of a formula to S
    6·1 answer
  • What numbers are between 0.8 and 1.1
    9·2 answers
  • A regular polygon has sides that are perpendicular. What is the measurement of each angle?
    7·1 answer
  • A pedestal for a statue is made with 405 cubic feet of concrete. What is the area of the base of the pedestal? 6.7 square feet 2
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!