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3 years ago

Gravel covers 66 ft of a path. This distance represents 55% of the length of the path.

Mathematics

2 answers:

Alexeev081 [22]3 years ago

6 0

120 feet, because i know

DanielleElmas [232]3 years ago

5 0

Answer:

The length of the path is $120\ ft$

Step-by-step explanation:

Let

x-----> the length of the path

we know that

$55\%=\frac{55}{100}=0.55$

$0.55x=66$ -----> linear equation that represent the situation

solve for x

Divide by $0.55$ both sides

$0.55x/0.55=66/0.55$

$x=120\ ft$

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1 year ago

Find the area of the equilateral triangle

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Step-by-step explanation:

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3 years ago

I need to use the Pythagorean Theorem to find X. I don’t know how to do that!!

frutty [35]

Answer:

17) x=8

18) $x=\sqrt{189}$ or $x= 3\sqrt{21}$

Step-by-step explanation:

So the rule is $a^{2} +b^{2} =c^{2}$ , "c" being the hypothenuse, or the long line that is opposite to the right angle.

17) We know that both values of x are equal to each other, which makes everything 10x easier!

$x^{2} +x^{2} =(8\sqrt{2}) ^{2}$

(by the way we know the x values are our a and b values because they are legs! the way I like to remember the legs is that they are connected to the right angle box, and therefore support the hypothenuse)

simplify (╥︣﹏╥)

$2x^2=8^2(\sqrt{2} )^{2}$

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$x^{2}= 128/2$

$x^{2} =64$

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18) Just pretend that the flipped triangle doesn't exist. It's parallel to the other triangle with values on it, and basically servers no purpose other than being parallel to the sister triangle :)

Anyways, since we know the hypothenuse (15) but we don't know one of our leg values (x), we're going to change our equation a bit!

$c^{2} - b^{2} = a^{2}$