The sum of three consecutive odd integers is 57. What are the three consecutive even integers?

1 answer:

3 0

17,19,21

17 plus 19 plus 21 equals 57

That’s a super easy way to quickly solve these equations in your head but there is a more complex way to do it which might come up sometime in your future

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Yuliya22 [10]

The unit rate is the slope. m = Δy/Δx
So you want the Δx (change in x) to be 1

point (1,15)

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Answer: 42.0

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. 25% of 900 = 225, 25% is called____ *

posledela

Answer:

25% is called a quarter of 900

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4. When Megan solved this system using the elimination method, she added the equations together and got the equation 4y = 16. Th

Ede4ka [16]

Hi there!

So, our two equations are:
2x + 3y = 20 and
-2x + y = 4

We can see that the x's will cancel out because they're the same number, opposite signs. Then we're left with 4y = 24.

Divide 24 by 4, which is 6.

y = 6, then we plug that in to the first equation for y:
2x + 3(6) = 20
2x + 18 = 20
2x = 2
x = 1

So, she made her first mistake when adding the equations, adding 20 and 4, she somehow got 16.

The solution to the system is (1,6).

I hope I helped!

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2 years ago

Determine whether the statement is true or false. If it is true, explain why. If it is false, explain why or give an example tha

ioda

True.

You're allowed to move stuff around. Dogs of the AMS.

$y' = 3y - 2x + 6xy - 1 \\
y' = 3y + 6xy - 2x - 1 \\
dy/dx= 3y(1 + 2x) - (2x + 1) \\
dy/dx = 3y(1 + 2x) - (1 + 2x) \\
\frac{dy}{dx} = (3y - 1)(1 + 2x) \ \Rightarrow\ \dfrac{dy}{3y-1} = (1 + 2x) dx$

We wrote it in the form dy/dx = g(x) f(y) so this is separable.

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2 years ago