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olga_2 [115]
3 years ago
13

(I NEED THIS DONE ASAP PLEASE) Lena wants to plant a new lawn, but she knows that it’s not safe to run a mower on a hill with a

slope ratio steeper than 1 to 3 (Δy = 1, Δx = 3). She has two hills in her yard. Hill A rises 4 feet and has a horizontal distance of 85 feet. Hill B rises 75 feet and has a horizontal distance of 200 feet. On which hill(s) can Lena safely plant her lawn? Justify your reasoning clearly
Mathematics
1 answer:
Sedbober [7]3 years ago
6 0

Answer:

  • Hill A

Step-by-step explanation:

<u>Steepness of hill A:</u>

  • 4/85 < 1/3

<u>Steepness of hill B:</u>

  • 75/200 = 3/8 > 1/3

The hill A is less sloped so it is safer to lawn plant

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We need to evaluate the value of fraction \frac{j}{4}.

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In order to evaluate the value of fraction \frac{j}{4}, we need to plug j=12.

Plugging j=12, we get

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We have 12 in numerator and 4 in denominator.

We always divide top number by bottom number.

So, we need to divide 12 by 4.

On dividing 12 by 4 we get 3.

<h3>Therefore, \frac{j}{4} = 3.</h3>
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The value of the expression, g/2 + 3 when x = 8 is: 7.

<h3>How to Evaluate an Expression?</h3>

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