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
ehidna [41]
3 years ago
15

The sum of three consecutive odd numbers is 39. What is the smallest of these numbers?

Mathematics
1 answer:
8_murik_8 [283]3 years ago
5 0

Step-by-step explanation:

As, they all are consecutive and odd

The equation = x + (x + 2) + (x + 4) = 39

X represent the first number and also the smallest one

X + 2 is the 2nd number, it's consecutive and odd so we need to add 2

X + 4 is the 3rd number, it's consecutive and odd to (x+2) so we will just add 2 more = x + 2 +2 = x +4

So x + (x + 2) + (x + 4) = 39

3x + 6 = 39

3x = 39 - 6

3x = 33

x = 11

So smallest number = 11

And x + 2 = 11+2 = 13 (second number)

And x + 4 = 11 + 4 = 15 ( third number )

So only because u asked for the smallest

So it's 11

You might be interested in
The data given below contain the state cigarette tax​ (in $) for all 20 regions of a country.
g100num [7]

Answer:

(a) \bar x= 1.583 -- Population Mean

(b) s = 1.032 --- Population standard deviation

(c) See Explanation

Step-by-step explanation:

Given:

Cigarette tax for 20 regions

Solving (a): The population mean

This is calculated as:

\bar x = \frac{\sum x}{n}

\sum x = 1.36 + 1.70 + 2.50 + 0.45 + 1.18 + 0.64 + 3.46 + 0.57 + 2.00 + 0.80 + 1.60 +0.98 + 0.36 + 2.24 + 4.35 + 0.62 + 2.70 + 1.78 + 1.53 + 0.84

\sum x = 31.66

n = 20

So, we have:

\bar x= \frac{31.66}{20}

\bar x= 1.583

Solving (b): The population standard deviation

This is calculated as:

s = \sqrt{\frac{\sum( x - \bar x)^2}{n}

\sum (x -\bar x)^2 = (1.36 - 1.583)^2 + (1.70 - 1.583)^2+ (2.50 - 1.583)^2+ (0.45 - 1.583)^2+ (1.18 - 1.583)^2+ (0.64 - 1.583)^2+ (3.46 - 1.583)^2+ (0.57 - 1.583)^2+ (2.00 - 1.583)^2+ (0.80 - 1.583)^2+ (1.60 - 1.583)^2+(0.98 - 1.583)^2+ (0.36 - 1.583)^2+ (2.24 - 1.583)^2+ (4.35 - 1.583)^2+ (0.62 - 1.583)^2+ (2.70 - 1.583)^2+ (1.78 - 1.583)^2+ (1.53 - 1.583)^2+ (0.84- 1.583)^2

\sum (x -\bar x)^2 = 21.29222

So:

s = \sqrt{\frac{21.2922}{20}

s = \sqrt{1.06461}

s = 1.032

Solving (c):

Population mean tells the average amount while the standard deviation represents the spread from the calculated mean

Option (4) is correct

6 0
3 years ago
Which expression can be used to find 7(-6 1/8)
andrezito [222]

The first option,

both have to be negative, because they were originally both part of the one fraction, which was all negative.

7 0
2 years ago
Read 2 more answers
23.5% of 128 Round to the nearest tenth if necessary
hram777 [196]
The answer is 30.08....................................................................
.
5 0
3 years ago
What’s the square root of PI
Snowcat [4.5K]
The square root of pi is 1.77245385091
4 0
3 years ago
a boat is bringing a diver up at 25 feet per minute, the diver is currently at 200 feet, where was he 10 minutes ago ???
Sidana [21]

Answer:he was at -50 feet


Step-by-step explanation:

If he is going 25 feet per minute then you do 25x10 winch is 250 to see how far they have been total then since hes at 200 feet now you subtract 250 from 200 and you get your answer

5 0
3 years ago
Other questions:
  • USING STRUCTURE What type of pair of angles are 6 and 13?
    9·1 answer
  • You take a three-question true or false quiz. You guess on all the questions. What is the probability that you will get a perfec
    15·1 answer
  • 5, 392, 029, 004 in word form
    10·2 answers
  • Help me please and explain so i can understand
    7·1 answer
  • Marla bought one necklace and two bracelets for $67.50. Use the following information to determine the amount she paid for each
    13·1 answer
  • Please help.. :(<br><br> This is confusing
    15·1 answer
  • Find the length of the third side. If necessary, round to the nearest tenth.
    13·1 answer
  • PLEASE HELPSHSHSJAJSNDMFMMF
    14·1 answer
  • Would it be easier for Dana from problem 3-68 to find a single 12-foot board of clear wood rather than four clear 3-foot pieces?
    12·1 answer
  • Write the equation of the line in slope intercept form that goes through points (-2, 5) and (3, 3)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!