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
arsen [322]
3 years ago
5

What is the sum of three consecutive even numbers is 30?

Mathematics
2 answers:
kykrilka [37]3 years ago
5 0
8, 10, 12

A helpful equation:
x+x+1+x+2 = 30

Combine like terms
3x + 3 = 30

Subtract 3 from each side
3x = 27

Divide each side by to isolate x
x = 9

x = 9. However, 9 is not an even number. Let’s subtract 1 from 9 to get the first even number.

The first number is 8. The best two even numbers after 8 are 10 and 12.

8 + 10 + 12 = 30, thus this is the sequence.
Serggg [28]3 years ago
3 0

Answer:

here:

you can make an equation

x + ( x + 2) + (x + 4) = 30

then by combining like items you get

3x + 6 = 30

then solve

3x = 30 - 6 ; then 3x = 24 , and x = 8

so the three numbers are 8 ; 10 and 12.

You might be interested in
Put them in order from least to greatest: 2.5 6.7 6.9 7.5 1.8 1.6
vladimir2022 [97]

Answer: 1.6,1.8,2.5,6.7,6.9,7.5

Step-by-step explanation:

4 0
1 year ago
Read 2 more answers
Four rectangles are shown in the diagram. For which pair of rectangles is the ratio of the side lengths 1:3?
kondor19780726 [428]
The answer is B. because it is 6:9 which simplifies down to 1:3
5 0
3 years ago
Write a quadratic function, in standard form, that fits the set of points. Solve it as a system of three equations. (-4, 9), (0,
Tresset [83]

Answer:

\boxed{y=2x^2+4x-7}

Step-by-step explanation:

Let the quadratic function be

y=ax^2+bx+c


We substitute (-4,9) into the equation to obtain;


9=a(-4)^2+b(-4)+c


\Rightarrow 9=16a-4b+c---(1)


We substitute (0,-7) to obtain;


-7=a(0)^2+b(0)^2+c


\Rightarrow c=-7---(2)


We finally substitute (1,-1) to obtain;


-1=a(1)^2+b(1)^2+c


\Rightarrow -1=a+b+c---(3)


We put equation (2) into equation (1) to get;


9=16a-4b-7


16a-4b=16


\Rightarrow 4a-b=4---(4)


\Rightarrow -1=a+b-7


\Rightarrow a+b=6---(5)


We add equation (4) and (5) to get;

4a+a=6+4



\Rightarrow 5a=10



\Rightarrow a=2


We put a=2 into equation (5) to get;


2+b=6


\Rightarrow b=6-2


\Rightarrow b=4


The reqiured quadratic function is

y=2x^2+4x-7

7 0
3 years ago
436.8 divided by 62.08
Readme [11.4K]

Answer:

7.03 if your rounding to the nearest tenth then its 7

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
5x^2-26x+5 factor the trinomial
ss7ja [257]
The factored form for this question is (5x-1)(x-5)
4 0
3 years ago
Other questions:
  • Help quick!!!!! I cannot figure it out, help.<br><br>(Both)
    15·1 answer
  • Andre purchased 10 cans of tennis balls from an online store and received a 25% discount. Shipping cost $5.99. Write an algebrai
    5·1 answer
  • How many inches are in 1 meter of ribbon
    7·2 answers
  • The linear​ model, y equals . 1967 x plus 15.66 comma provides the approximate​ enrollment, in​ millions, between the years 2003
    8·1 answer
  • Given:<br> f(x)=x²-5<br> s(x) = x² +5
    10·1 answer
  • Plz help asap I've been trying to figure it out ​
    13·1 answer
  • I WILL GIVE BRAINLIEST
    9·1 answer
  • What is the measurements of the circle?​
    14·1 answer
  • If the ratio of boys to girls is 1:4 and there are 20 girls in your class, how many boys are there?
    15·2 answers
  • Does anybody have the answer to this because I’m trying to make sure of my answer
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!