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sergey [27]
3 years ago
11

Which number line model represents the expression -2+(-7)? Khan academy help!!!!!

Mathematics
1 answer:
gtnhenbr [62]3 years ago
6 0
-9 because 2+7=9 so the negative part oh then must be -9
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$947.50 - $189.50 = ?<br>Am I not smart or what?
VashaNatasha [74]
<span>   $947.50
</span> - $189.50
_________
$758.00

So, to do this first we start at the far right and go to the left.

   $947.50 - $189.50_________
   $      .00
0-0= 0
5-5= 0

You then bring down the decimal.

   $947.50 - $189.50_________
    $   8 .00
Because you cannot subtract 9 from 7, you borrow one from the number to the left of it and 7 turns into a 17 as 4 turns into a 3. So then, 17-9=8.
         17
   $93-7-.50         -7- = This means the 7 has been canceled out and turned  - $189.50                        into the 17 above _________         8 .00
This happens again with subtracting 3 from 8 in which you take one from the number beside which happens to be 9 and make it 8.

          17
   $8-3--7-.50         -7- and -3- = This means the 7 has been canceled out                                                         and turned into the 17 above 
  - $189.50                        _________    $ 58 .00
So then, 13-8=5. Finally 8-1= 7

   $947.50
 - $189.50
_________
$758.00

4 0
4 years ago
Solve the given equation. Round to the nearest ten-thousandth. <br><br>PLEASE HELP ME ​
Helen [10]

Answer:

0.667

Step-by-step explanation:

3x = 2

3x/3 = 2/3

x = 2/3

0.66666666666666666666666666666666666666666666666.....

Answer: 0.667

8 0
3 years ago
I neeed help. this is due today
RoseWind [281]

Answer:

I’d say letter A

4 0
3 years ago
Read 2 more answers
What is the irrational number between 8 and 8.1
UkoKoshka [18]
There are infinitely many irrational numbers between 8 and 8.1, if I'm not mistaken.
6 0
3 years ago
(2-i)-(4-6i)(-3+3i) simplify
Wewaii [24]

Answer:

9 - 10i

Step-by-step explanation:

2 + 4 =

6

- 3(when added) =

3

6 + 3 =

9

i + 6i =

7i

7i + 3i =

10i

8 0
2 years ago
Read 2 more answers
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