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iris [78.8K]
3 years ago
14

ANYONE...........help​

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
3 0

Answer:

  • 1 cm

Step-by-step explanation:

<u>Sides of the picture added margin:</u>

  • l = 8 + 2x
  • w = 5 + 2x
  • A(margin) = 30 cm²

<u>Solution</u>:

  • A(margin) = Total area - A(picture)
  • (8 + 2x)(5 + 2x) - 5*8 = 30
  • 4x² + 10x + 16x + 40 - 40 - 30 = 0
  • 4x² + 26x - 30 = 0
  • 2x² + 13x - 15 = 0
  • x = (-13 + √(13² + 2*4*15))/4
  • x = (-13 + 17)/4
  • x = 1 cm

Note. The other root is ignored as negative.

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galben [10]

Answer:

a. 12.5

Step-by-step explanation:

Scale factor of ∆LMN to ∆XYZ = 2:5

To find length of side ZX, set the ratio of the corresponding sides of interest equal to the scale factor.

Thus:

ZX corresponds to NL = 5

NL:ZX = 2:5

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5/ZX = 2/5

Cross multiply

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Lady bird [3.3K]
4-7x=39
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7x=35
÷7. ÷7
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Your final answer is 6.
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To find the answer, you have to divide the amount of calendars given away to the amount of days:

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<em>Thank you! Btw, can you please give me brainly :3</em>

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