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
Stels [109]
3 years ago
13

The mean of four consecutive even numbers is 15. The greatest of these numbers is a1. The least of these numbers is a2.

Mathematics
1 answer:
skad [1K]3 years ago
6 0
X + (x + 2) + ( x + 4) + (x + 6)
-----------------------------------     = 15
                   4

4x + 12
---------    = 15
    4

Multiply by 4 on both sides

4x + 12 = 60
subtract 12 from both sides
4x = 48
divide by 4 on each side
x = 12
x + 2 = 14
x + 4 = 16
x + 6 = 18
You might be interested in
One number was divided by 2, followed by this quotient being multiplied by 4. next, the product was added to 9. the total sum wa
grin007 [14]

Answer:

Step-by-step explanation:

First, turn the word problem into an equation:

n(a number) was divided by 2

\frac{n}{2}

followed by this quotient beying multiplied by 4

\frac{n}{2}*4

the product was added to 9

\frac{n}{2}*4+9

the total sum was 25

\frac{n}{2}*4+9 = 25

use PEMDAS to solve the equation

subtract 9 on both sides

\frac{n}{2}*4 = 16

cancel the 2 and the 4 using factorization

n*2 = 16

divide 2 on both sides

n = 8

7 0
2 years ago
The axis of symmetry for the graph of the function is f(x) = 1/4 x2 +
CaHeK987 [17]

Answer:

Step-by-step explanation:

f(x) = 1/4 x²+bx+10

the derivate is : f'(x) = 1/2 x +b

you have : f'(6)=0

1/2 (6)+b=0

3+b =0

b = -3

so f(x) = 1/4 x²-3x+10.......f(6) =1/4(6)² -3(6)+10 =9-18+10 =1

f(x) = 1/4(x-6)²+1... the vertex form

3 0
3 years ago
If xy is rational, must x and y each be rational?
balu736 [363]
<span>Your answer is is simply,no x and y could have a common irrational factor. </span>
3 0
3 years ago
What is the answer to this question
zhannawk [14.2K]

Answer:

The square is 240 and the triangle is 40 which makes 280 in total

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Find a composite number between 41 and 50, with the sum of its prime factors equal to 14
kari74 [83]
49, 7+7=14
There you go.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Please help!.......
    9·1 answer
  • Determine which system below will produce infinitely many solutions.
    12·1 answer
  • Each of these figures is based on a rectangle whose centre is shown.
    5·1 answer
  • How do you find the vertex of a parabola..?
    5·2 answers
  • 32 pages to 28 pages percent of change
    8·1 answer
  • Florence is driving on the highway at a rate of 6 miles for every 5 minutes for exit is 24 miles away how many minutes will it t
    14·1 answer
  • What is the constant of proportionality<br><br><br> will choose braij
    7·1 answer
  • Check My Work According to the National Association of Realtors, it took an average of three weeks to sell a home in 2017. Data
    10·1 answer
  • Graph the equation. y = − 5/4 ( x − 1 ) ( x + 3 )
    15·1 answer
  • This table represents a linear function. x y 0 5 5 15 This graph represents another function.The greater unit rate of the two fu
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!