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netineya [11]
3 years ago
13

Select all expressions that are equivalent to 2x+3x+8-3x-2.

Mathematics
1 answer:
dedylja [7]3 years ago
4 0

Answer:

2x+6 since the +3 and -3x cancel each other out your only left with 2x

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Math 7a using number sense to solve equations
Anika [276]
Simple...

you have: \frac{n}{3} =12


and

\frac{n}{3} =-12

To solve for....\frac{n}{3} =12

Multiply to remove the denominator-->>

3*  \frac{n}{3} =12*3

n=12*3

n=36

Then-->>>

\frac{n}{3} =-12

Do the same thing-->>

3* \frac{n}{3} =-12*3

n=-12*3

n=-36

Thus, your answer.



6 0
4 years ago
A boy is twice as old as his sister who is x years old now. In 2 years, the boy will be
Maksim231197 [3]

Answer and Step-by-step explanation:

2x + 2 is the answer.

If the boy is twice as old, and the sister's age is represented by <em>x</em>, then we multiply 2 to x to represent the boy's age.

Then we add 2 when 2 years pass by.

<em>#teamtrees #PAW (Plant And Water)</em>

4 0
3 years ago
What integer is equivalent to 25 3/2
lutik1710 [3]
Hi there!

To find an integer equivalent to this mixed number, we can simplify it.

25 3/2 = 26 1/2

So, 26 1/2 is an answer.

Hope this helps!
3 0
3 years ago
If a body moves in a straight line according to the law s = 24t + 3t^2 - t^3, where s is the distance measured in meters from th
Anastasy [175]
As the comments state, the velocity is the derivative of the position.

Therefore, the velocity as function of time is:

ds / dt = 24 + 6t - 3t^2.

That is a parabola whose maximum is (1,27). With that you know that the velocity will never be either 63 m/s or 81 m/s.

Also, you know that the velocity at t = 1 s is 27 m/s.

And, you can also find that the velocity at t = 3 is 15 m/s.

I am confident on that this analysis solves your question. Else, insert a comment.
4 0
3 years ago
You entered a room, there are 34 people. You killed 30. How many people are left in the room?
Vika [28.1K]

Answer:

5

Step-by-step explanation:

4 people you didnt kill and that were already there and you

can i have brainliest if i got it right pls

8 0
3 years ago
Read 2 more answers
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