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Sav [38]
3 years ago
14

three less than a triple number is the same as the number plus 57. What is the number ? help i would appreciate it =)

Mathematics
1 answer:
RoseWind [281]3 years ago
5 0

Answer:

Y x 3 - 3 = Y + 57

30 would be your answer

add 3 to both sides so it becomes Y x 3 = Y + 60 and 60/2=30

30 x 3 = 90-3=87

30 + 57 = 87

Hope this helps (I am twelve and I know how to do this)

Step-by-step explanation:

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7. Find an equation of the line containing (- 4,5) and perpendicular to the line 5x - 3y = 4.
bagirrra123 [75]

The equation of the line containing (- 4,5) and perpendicular to the line 5x - 3y = 4 is y = -3 / 5 x + 13 / 5

<h3>How to find the equation of a line?</h3>

The equation of a line can be represented as follows:

y = mx + b

where

  • m = slope
  • b = y-intercept

Therefore, the equation passes through (-4, 5) and perpendicular to 5x - 3y = 4

Hence,

perpendicular lines follows the rule below:

m₁m₂ = -1

Hence,

5x - 3y = 4

5x - 4 = 3y

y = 5/ 3 x - 4 / 3

m₁ = 5 / 3

5/3 m₂ = -1

m₂ = - 3 / 5

Hence,

using (-4, 5)

5 = - 3 / 5 (-4) + b

5 = 12 / 5 + b

b = 5 - 12 / 5 = 25 - 12 /5 = 13 / 5

Therefore,

y = -3 / 5 x + 13 / 5

learn more on equation of a line here: brainly.com/question/10727767

#SPJ1

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2 years ago
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Help me before 12 and i will mark the right one brainliest
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This should help!! Thanks! Let me know!

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PLEASE HELP QUICK
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