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Oliga [24]
3 years ago
5

How do you do 7-12? How do you do 13-18?

Mathematics
2 answers:
eimsori [14]3 years ago
7 0
7-12 is like a negative number so it will be -5. And 13-18 would be -5 also. 
Alja [10]3 years ago
3 0
What you need to do is take 7-12 and 13-18 and flip them and add a negative sign to your answer .
So 7-12= -5 and 13-18= -5
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adelina 88 [10]

Answer:

500

Step-by-step explanation:


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4 0
2 years ago
If -3m + 1 > 7, which of the following is a solution set for m?
Papessa [141]

ANSWER

m < -2

EXPLANATION

We want to find the solution set for m in:

-3m+1>7

First, collect like terms:

\begin{gathered} -3m>7-1 \\ -3m>6 \end{gathered}

Now, divide both sides by -3. When you divide an inequality by a negative number, <em>the sign changes direction</em>:

\begin{gathered} \frac{-3m}{-3}>\frac{6}{-3} \\ m

This means that all values of m must be less than -2.

<em>None of the options contains the correct solution set.</em>

4 0
11 months ago
ASAP PLS!! i attached a link with a screenshot of the question. please give step by step!!!!! will mark brainliest :)
emmainna [20.7K]

Answer:

I found two different solutions. Hope one of them help!

1. x = -1/3 = -0.333

2. x = 5/2 = 2.500

Step-by-step explanation:

13 ± √ 289

  x  =    ——————

                     12

Can  √ 289 be simplified ?

Yes!   The prime factorization of  289   is

  17•17

To be able to remove something from under the radical, there have to be  2  instances of it (because we are taking a square i.e. second root).

√ 289   =  √ 17•17   =

               ±  17 • √ 1   =

               ±  17

So now we are looking at:

          x  =  ( 13 ± 17) / 12

Two real solutions:

x =(13+√289)/12=(13+17)/12= 2.500

or

x =(13-√289)/12=(13-17)/12= -0.333

Two solutions were found :

x = -1/3 = -0.333

x = 5/2 = 2.500

7 0
3 years ago
Plz Plz help its hard
Katena32 [7]

Answer:

Third answer! Data varies!

3 0
2 years ago
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