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Goshia [24]
3 years ago
15

50 points please help

Mathematics
2 answers:
ioda3 years ago
8 0
4x row 3 box 2 that’s the only one I know
satela [25.4K]3 years ago
6 0

Step-by-step explanation:

Start filling in from the bottom, left to right

<u>Row 2 from bottom:</u>

  • -2x + 3
  • 3 + (-5) = -2
  • -5 + 7y = 7y - 5
  • 7y + 1

<u>Row 3 from bottom:</u>

  • 2x + (-2x) + 3 = 3
  • -2x + 3 + (-2) = -2x + 1
  • -2 + 7y - 5 = 7y - 7

<u>Row 4 from bottom:</u>

  • 3 + (-2x) + 1 = -2x + 4
  • 7y - 7 - 5 + 15y =  22y - 12

<u>Row 5 from bottom:</u>

  • -2x + 4 -2x - 6 + 7y = -4x + 7y - 2
  • -2x - 6 + 7y + 22y - 12 = -2x + 29y - 18

<u>Top row:</u>

  • -4x + 7y - 2 - 2x + 29y - 18 = -6x + 36y - 20
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Kamila [148]
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5 0
3 years ago
Solve for r: C = 2 pi r. (1
katen-ka-za [31]

Answer:

C/2pi = r

Step-by-step explanation:

C = 2 pi r

divide with 2 pi on both sides to solve for r

C/2pi = r

5 0
2 years ago
X+y=26<br> 3x+8y=123<br> What is x equal
Pani-rosa [81]

Answer:

x=17, y=9. (17, 9).

Step-by-step explanation:

x+y=26

3x+8y=123

------------------

x=26-y

3(26-y)+8y=123

78-3y+8y=123

78+5y=123

5y=123-78

5y=45

y=45/5

y=9

x=26-9=17

5 0
3 years ago
What is the excluded value of a/b-2
Readme [11.4K]

The correct excluded value is 2.

8 0
3 years ago
Martin burns 360 calories running for 30 minutes. Paul burns 165 calories for every 15 minute he runs. If Kara runs for 20 minut
Yanka [14]

Answer:  She would have to burn between 220 and 240 calories per minute to have a calorie burn rate between those of Martin and Paul.

Step-by-step explanation:

Martin:

360 calories / 30 min = 12 calories/min

Paul:

165 calories / 15 min = 11 calories/min

Kara:

Needs to burn between 11 and 12 calories/min, so we'll calculate the range:

11 calories/min x 20 min = 220 calories (minimum # calories she can burn)

12 calories/min x 20 min = 240 calories (maximum # calories she can burn)

7 0
3 years ago
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