What three even numbers add up to 54

Answers

Answer 1

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

-- If the 54 were split up into three equal 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:
Take 2 away from one piece and glue it onto a different one.
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 !

Answer 2

Answer: 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) -6 -6
3x = 48
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

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If cos(2x-1)=sin(3x+6) the what is the value of x?

Answers

The value of x in expression cos(2x-1) = sin(3x+6) is 17.

cos(2x-1) = sin(3x+6)

let

a = 2x - 1

b = 3x + 6

Therefore,

cos a = sin b

Therefore, a and b are complimentary.

What is complimentary angle?

Complimentary angles are angles that sum up to 90 degrees. Therefore,

2x - 1 + 3x + 6 = 90

2x + 3x - 1 + 6 = 90

5x + 5 = 90

5x = 90 - 5

5x = 85

x = 85 / 5

x = 17

learn more on trigonometry here: brainly.com/question/2193114

2x - 1 + 3x + 6 = 90°
5x + 5 = 90
5x = 90 - 5
5x = 85
x = 85/5
x = 17°

elena spent $2.50 on pineapple juice. pineapple juice costs $0.10 per ounce. how many ounces of pineapple juice did elena buy?

Answers

2.50 divided by 10 is 0.25 because you move the decimal place to the left with division. I hope this helps

Answer:

0.25

Step-by-step explanation:

I'm a genius plus I did this already

Please help I'm so confused rn so please helppp!!!!!
look at the screenshot

Answers

There is no picture attached I can’t see the screenshot

Answer:

there's no screenshot attached

A plane is heading 25° west of south. How many degrees south of west is this plane flying?

Answers

65 degrees should be your answer

Well there are 90 dehrees between due south and due west so add 25 degress to that and that should be your answer

The minimum of the graph of a quadratic function is located at (–1, 2). The point (2, 20) is also on the parabola. Which function represents the situation?A.f(x) = (x + 1)2 + 2
B.f(x) = (x – 1)2 + 2
C.f(x) = 2(x + 1)2 + 2
D.f(x) = 2(x – 1)2 + 2

Answers

Minimum wykresu funkcji kwadratowej znajduje się w ( -1, 2). Punkt ( 2 , 20) jest również od paraboli. Która funkcja reprezentuje sytuację?
Canonical form of the function
f(x) = a* (x - p)² + q

A .f(x) = (x + 1)² + 2 ⇔ p= -1 , q = 2
B. f(x) = (x – 1)² + 2 we reject
C. f(x) = 2(x + 1)² + 2 ⇔ p = -1 , q = 2
D .f(x) = 2(x – 1)² + 2 we reject

The point (2,20) substitute
A f(x) = (x +1)² + 2
20 = (2 + 1 )² + 2
20 ≠ 9 +2
20 ≠ 11 we reject

D f(x) = 2* (x + 1)² + 2
20 = 2* (2+1)² + 2
20 = 2 * 3² + 2
20 = 2 * 9 + 2
20 = 18 + 2

Reply C

(2x-20)(5x+10)
help pls

Answers

Développement
10x + 20x -100x -200
=-70x -200

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I need help pleeeeeaaaaasssseeeee