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
AnnyKZ [126]
3 years ago
14

the average of three numbers is 6. the average of the first and second is 7, what is the value of the third number?​

Mathematics
1 answer:
KIM [24]3 years ago
6 0

Answer:

4

Step-by-step explanation:

the sum of the first two numbers is 7*2=14 and the sum of the three numbers is 6*3=18 then you subtract the answers giving you 4

You might be interested in
Heather received a 32% discount on a $34 shirt. After the 7% sales tax was added, how much did she pay for the shirt.
Marat540 [252]

Answer:

$15.17

Step-by-step explanation:

divide 34 by 32 = 1.0625. and divide it by the 7%= $15.17

5 0
4 years ago
Read 2 more answers
Evaluate using <br> Definite integrals
swat32

Since [0,4]=[0,1]\cup(1,4], we can rewrite the integral as

\displaystyle \int_0^1f(t)\;dt + \int_1^4 f(t)\; dt

Now there is no ambiguity about the definition of f(t), because in each integral we are integrating a single part of its piecewise definition:

\displaystyle \int_0^1f(t)\;dt = \int_0^11-3t^2\;dt,\quad \int_1^4 f(t)\; dt = \int_1^4 2t\; dt

Both integrals are quite immediate: you only need to use the power rule

\displaystyle \int x^n\;dx=\dfrac{x^{n+1}}{n+1}

to get

\displaystyle \int_0^11-3t^2\;dt = \left[t-t^3\right]_0^1,\quad \int_1^4 2t\; dt = \left[t^2\right]_1^4

Now we only need to evaluate the antiderivatives:

\left[t-t^3\right]_0^1 = 1-1^3=0,\quad \left[t^2\right]_1^4 = 4^2-1^2=15

So, the final answer is 15.

4 0
4 years ago
5 less than the quotient of a number y and 2
Marta_Voda [28]
Quotient means division....less then means subtract
(y/2) - 5
5 0
3 years ago
Solve and show all work |2×+3| -6=11​
mash [69]

Answer:

x = -10; x = 7  

Step-by-step explanation:

|2x + 3| - 6 =11

Add 6 to each side.

|2x + 3| = 17

Apply the absolute rule: If |x| = a, then x = a or x = -a.

(1) 2x + 3 = 17                    (2) 2x + 3 = -17

Subtract 3 from each side

         2x = 14                                 2x = -20

Divide each side by 2

          x = 7                                   x = -10

<em>Check: </em>

(1) |2(7) + 3| - 6 = 11                     (2) |2(-10) + 3| - 6 = 11

      |14 + 3| - 6 = 11                              |-20 + 3| - 6 = 11

             |17| - 6 = 11                                     |-17| - 6 = 1 1

              17 - 6 = 11                                        17 - 6 = 11

                    11 = 11                                              11 = 11

7 0
4 years ago
Work out the answers of the following:
schepotkina [342]

Answer:

1)-5

2)-15

3)1

4)-11

5)-70

if negative use () for example

(-2)-7+4

7 0
3 years ago
Read 2 more answers
Other questions:
  • I need help on this
    11·1 answer
  • F - 8/9 = 5/9 so what is f
    8·2 answers
  • A recession is
    5·2 answers
  • What this whole unit thing about can someone help me with the answer and explain plz:)
    14·1 answer
  • What is the cost of goods sold?
    13·1 answer
  • Kendra wants to pay 500 photographs into an album 6 photos to a page she figures that she will need about 100 pages
    7·2 answers
  • Write 30/4 as a mixed number plz help me!!!
    7·2 answers
  • On a number line what number is two thirds of the distance from 1/2 to 2.25?
    6·1 answer
  • Find the slope from the table
    10·1 answer
  • (5x + 2)+(7x - 6) equals what
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!