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3 years ago

What is the value of x? x = ___

Mathematics

1 answer:

iVinArrow [24]3 years ago

5 0

Answer:

x = 9

Step-by-step explanation:

The triangle is split into two similar triangles. They have the same shape but not the same size. To solve, write a proportion.

$\frac{9}{81}=\frac{3x-20}{3x+36}$

Cross multiply to solve for x.

9(3x+36) = 81(3x-20)

27x + 324 = 243x -1,620

1,944 = 216x

9 = x

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Answer:

If angle 2 and 4 are next to each other then it's true, if not then false.

Step-by-step explanation:

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3 years ago

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Sabrina built a model of one of the office buildings in Dallas shaped like a rectangular prism. The model was 4.1 inches wide, 5

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Answer:

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Step-by-step explanation:

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3 years ago

Ok im tired of asking this Ok i need both questions

Murrr4er [49]

Answer:

Answer 1:

5/8 = 2.5/4 so its 2.5 months

Answer 2: The decimal repeats as when you divide by 2 you get 4.5/8, which is 0.5625.

Step-by-step explanation:

1/4=2/8, so continue that on until you get the answer.

5/8÷1/4

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3 years ago

The center circle on a playing field has a radius of 7.5m find its circumference

Nady [450]

<h3>Given:</h3>

r= 7.5 m

r= radius

The circumference of the circular playing field.

<h3>Solution:</h3>

$\huge\boxed{Formula:C= 2\pi{r}}$

We'll have to multiply 2, π and radius.

Substitute the values according to the formula.

$C= 2× \pi ×7.5$

$C= 47.12389$

$\large\boxed{C= 47.12 \: m}$

Therefore, the circumference of the circular playing field is 47.12 feets.

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3 years ago

If you purchesd a $49.00 gift and you use a 20% off coupon how much do you spend

Nutka1998 [239]

Answer:

$39.20

Step-by-step explanation:

$49 * (1-.2) = $39.20

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3 years ago