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statuscvo [17]
3 years ago
15

1) The ratio 20 minutes to 1hour can be written 1:n. What is the value of n.

Mathematics
1 answer:
yarga [219]3 years ago
6 0

Answer:

n=3 x=225,000km

Step-by-step explanation:

1hour=60mins

20:60

1:3

n=3

1/25000=9/x

x=9×25000

x=225,000km

hope it helps:)

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Find the equation of the line that contains the point (4, - 2) and is perpendicular to the line y = - 2x + 5. ​
Licemer1 [7]
<h3>Answer:</h3>

y=1/2x

<h3>Solution:</h3>
  • The slopes of perpendicular lines are opposite reciprocals of each other.
  • The simplest way to determine a number's reciprocal is to flip it over, like so:
  • -2 ~ - > -\displaystyle\frac{1}{2}
  • Now, change the sign:
  • \displaystyle\frac{1}{2}
  • So we have the <em>slope </em>of the line that's <em>perpendicular </em>to the given line.
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Hope it helps.

Do comment if you have any query.

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Math Analysis Please Help !!!!!!
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How do I do 1 and 5?
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I will show you how to do #5:

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Final Expression: -22 + n


b).  1.5 + (-2.5)(n -1)     Original Expression 
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Final Expression: 4 - 2.5n




8 0
3 years ago
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