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2 years ago

Some please help answer this step by step

Mathematics

1 answer:

egoroff_w [7]2 years ago

8 0

It might be wrong but this is how i solved it: i used the elimination method to solve this and got x is 3-4y and y is all real numbers
first multiply the top equation by 5 and then you get:
5x+20y=15
-5x-20x=-15
since all the numbers are canceled out it is all real numbers.

then for x since you can’t substitute the y back in i just did:
x=3-4y
i just moved over the 4y

and to prove it you can say you substituted several points and they all worked
hope this helped let me know if you have any questions

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A man that is 6 feet tall casts a shadow 5 feet long. At the same time, a lamppost beside the man casts a shadow 25 feet long. H

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Answer:

The answer to your question is: L = 30 ft

Step-by-step explanation:

Data

man = 6 ft

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3 years ago

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2 years ago

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Thank you for posting you question here at brainly. I hope the answer will help you. The <span> practical domain and the practical range for this situation is below:

</span>D: [5, 7]
<span>R: [58, 81.2]
</span>
Feel free to ask more questions here at brainly. I'd be happy to answer.

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Answer:

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