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
Bumek [7]
3 years ago
10

What three even numbers add up to 54

Mathematics
2 answers:
My name is Ann [436]3 years ago
5 0
X = lowest
x+2 = middle
x+4 = largest

x +      x+2 +    x + 4 = 54

Combine like terms to get 3x + 6 = 54
Subtract 6 (both sides)     <u>      -6     -6
</u>                                       <u>3</u>x = <u>48</u>
divide by 3 (both sides)     3       3

x = 16 (smallest even number)   x+2 = 18 (middle even number and x+4 = 20 (largest even number)   Add them up 16+18+ 20 and sure enough, you get 54
rodikova [14]3 years ago
5 0

The way I like to do these is like this ... without algebra:

-- If the 54 were split up into three <em><u>equal</u></em> pieces,
each piece would be 1/3 of 54 = 18 .

-- Can you take three equal size-18 pieces and change them in
such a way that they're all different but their sum doesn't change,
and they still add up to 54 ?

-- How about like this: 
<em>Take 2 away from one piece and glue it onto a different one</em>.
Now they still make the same 54 when you put them all into the same pot. 
But now they're all different ... instead of 18, 18, 18, now you have 16, 18, 20.

Look ma !  No algebra !

You might be interested in
12. (2v^3 - v + 8) + (-v^3 + v - 3)<br><br> 14. (4h^3 + 3h + 1) - (-5h^3 + 6h - 2)
Lana71 [14]
12. On addition, you can just combine like terms.
2v^3+(-v^3)=v^3
-v+v cancels each other out
8+(-3)=5
So you have v^3+5

14 On subtraction, you have to remember to distribute the negative sign so after you do that you have:
4h^3+3h+1+5h^3-6h+2
Then you can combine like terms
4h^3+5h^3=9h^3
3h-6h=-3h
1+2=3
So you end up with:
9h^3-3h+3

Hope that helps and feel free to ask any questions.
7 0
3 years ago
Someone please help me out i don´t understand this question <br> ill give you 21 points
suter [353]

Answer:

0.67

Step-by-step explanation:

Formula: k = y/x

k = 2/3

k = 0.66666666666

k = 4/6

k= 0.66666666666

k = 6/9

k = 0.66666666666

k = 8/12

Round 0.67

Hence, answer = 0.67

[RevyBreeze]

8 0
2 years ago
Read 2 more answers
0.032 0.90 0.088 from greatest to least
ioda

Answer:

0.9 , 0.088 , 0.032

Step-by-step explanation:

0.9 --> 1st greatest

0.088 --> 2nd greatest

0.032 --> 3rd greatest

So, 0.9 , 0.088 , 0.032

5 0
2 years ago
Help me please hurry
tatuchka [14]

Answer:

61°

this triangle is split in half and forms 2 triangles. These triangles must be congruent since they are each excatly half of this rectangle

Therefore, <2 is going to be equal to the m< the corresponding angle in the other triangle. <2 = 61°

<2 is also equal to 61° by the interior angles theorem

Step-by-step explanation:

5 0
3 years ago
Draw a line through each point using the given slope. What do you notice about the two lines?
morpeh [17]
I think the answer is that they are parallel
5 0
3 years ago
Other questions:
  • Austin has two Marvel posters he wants to hang on the wall in his bedroom. The wall is 16.5 feet wide and each poster is 5 3/4 f
    11·1 answer
  • How would i solve 8x squared plus 4x =0
    7·2 answers
  • If the point (5, k) lies on the line represented by the equation 2x + y = 9, the value of k is
    6·1 answer
  • Write 15 cookies to 40 brownies as a ratio in simplest form
    15·2 answers
  • Which function best models the data?
    9·1 answer
  • May I please have some help​
    7·1 answer
  • . Solve.<br> 2/3 of 3/5 plese help
    13·1 answer
  • How many solutions does 3-2x=x+3 have​
    11·2 answers
  • Hello!!:) <br> Please help me answer 1-6 will give brainlst &lt;3
    13·2 answers
  • A fitness center is interested in finding a 90% confidence interval for the mean number of days per week that Americans who are
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!