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2 years ago

Solve for x. 9x = 3x - 36 A x = -6 B x = – 4 C X=4 D x = 6

Mathematics

2 answers:

Lelu [443]2 years ago

7 0

Answer:

x=-6

Step-by-step explanation:

9x-3x=-36

6x=-36

x=-6

brainliest?

Ymorist [56]2 years ago

7 0

Answer:

Step-by-step explanation:

When it's multiple choice, you can plug in each number until you find the correct answer. In this case: 9(-6)=3(-6)-36, which equals -54=-54. But, you can also solve for x without plugging in the numbers.

Steps:

1) 9x=3x-36

2) 6x=-36 Subtract 3x from both sides

3) x=-6 Divide both sides by 6

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3 years ago

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Step-by-step explanation:

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4 0

2 years ago

Mary is flying a kite and has let out 50 yards of kite string. Mary’s kite is directly above Erika.

ch4aika [34]

The distance of Erika from kite directly is 35.71 yards

Step-by-step explanation:

Considering the given situation as a right triangle with string as hypotenuse and the distance between both girls as base

So,

$h = 50\ yards\\b = 35\ yards$

As the triangle is a right triangle, we can use pythagoras theorem to solve this problem.

$h^2 = b^2 + p^2\\p^2 = h^2 - b^2\\p^2 = (50)^2 - (35)^2\\p^2 = 2500-1225\\p^2 = 1275\\\sqrt{p^2} = \sqrt{1275}\\p = 35.707\ yards$

Rounding off to nearest hundredth

=> 35.71 yards

Hence,

The distance of Erika from kite directly is 35.71 yards

Keywords: Triangle, Pythagoras

Learn more about triangle at:

#LearnwithBrainly

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2 years ago

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2 years ago

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