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stepan [7]
3 years ago
15

Learn with an example

Mathematics
1 answer:
Daniel [21]3 years ago
4 0

Answer: 10,000

11 * 2 = 22

5,000 * 2 = 10,000

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Helpppppppppppp plzzzzzzzzzzzzzzzzzzz
ZanzabumX [31]

Answer:

Step-by-step explanation:

\left[\begin{array}{ccc}7&31\\142&19\end{array}\right] = 7(19) - 142(31) = <em>- 4269</em>

\left[\begin{array}{ccc}7&11&21\\55&-8&2\\-16&-1&-9\end{array}\right] = 7(- 8)(- 9) + 11(2)(- 16) + 21(55)(- 1) - 21(- 8)(- 16) - 7(2)(- 1) - 11(55)(- 9) = <em>1768</em>

\left[\begin{array}{ccc}9.07&6.02&2.01\\-30.7&2.5&3.5\\3.55&-1.1&2.35\end{array}\right] = 9.07(2.5)(2.35) + 6.02(3.5)(3.55) + 2.01(- 30.7)(- 1.1) - 2.01(2.5)(3.55) - 9.07(3.5)(- 1.1) - 6.02(- 30.7)(2.35) = <em>647.3561</em>

4 0
3 years ago
1. Grace was given the equation 2x + 20 = 15. She decides to add 10 to both sides of the equation. a.) Is that an acceptable mov
vlada-n [284]

9514 1404 393

Answer:

  • yes
  • 2x +30 = 25

Step-by-step explanation:

Adding the same number to both sides of the equation is an acceptable move. The addition property of equality tells Grace that the value of the variable will remain unchanged by such a move.

Her new equation would be ...

  2x +20 +10 = 15 +10

  2x +30 = 25 . . . . the result of Grace's move

_____

<em>Additional comment</em>

There may be very good reasons why Grace would want to do that. If solving the equation is Grace's intent, that move would be counterproductive. For the purpose of solving the equation, it would be more productive to either subtract 20 from both sides, or divide both sides by 2. These steps would give, respectively, ...

  2x = -5

  x +10 = 7.5

6 0
3 years ago
Can anyone answer this
notka56 [123]
I can’t seem to look at the bottom two answers and the two ( A and B) are not correct. So you’re left with either C or D
8 0
3 years ago
351 students in 27 classes _____ students in each class
77julia77 [94]

Answer:

13

Step-by-step explanation:

351 divided by 27 = 13

7 0
3 years ago
Read 2 more answers
How would you round this to the nearest mile 244.1399784294165944?
KonstantinChe [14]
It would be rounded down to 244 as its only .1 so its closer to 244 than it is to 245
4 0
3 years ago
Read 2 more answers
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