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son4ous [18]
3 years ago
13

If y varies directly as x, and y is 180 when x is n and y is n when x is 5, what is the value of n?

Mathematics
2 answers:
Veronika [31]3 years ago
7 0

Answer:

6

Step-by-step explanation:

y=k*x

180=k*n

n=k*5

180=k*k*5. so k*k=36, k=6

solmaris [256]3 years ago
7 0

Answer: The answer is c.30

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To answer this question, you need to know that a quarter is worth $0.25 and dimes worth $0.10. In this case, the total number of money that made from quarters and dimes is $2.80
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2.80= 0.25 Q + 0.10 D

The condition that needs to be fulfilled in this case is that the quarter should be 8 more than dimes. Then you need to find out the highest possible number of the quarter and lowest possible number of the dimes.  
If you divide 2.8 with 0.25 you will found it will be 11.2 but 11 quarter will result with 0.05 value which you cannot remove, so the highest possible of the quarter should be 10.
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3 years ago
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The answer to this would be A: -9/10. Hope this helps!

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What are the roots of the quadratic equation X² + 4X + 4. How many roots are there.
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3 years ago
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if you can give me brainliest that would be great

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vampirchik [111]

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