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3 years ago

Deeper Dynamite Division

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

4 0

Area = length * width
241.2 = 15 * width
Width = 241.2/15 = 16.08 meters
Perimeter = 2*length + 2*width = 62.16 meters

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Answer:

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3 years ago

**GIVING OUT BRAINLIEST PLEASE HELP***

OLga [1]

Answer:

n is less than or equal to: 10

Step-by-step explanation:

10n+20=120

subtract 20

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3 years ago

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It's a system of equations x=-4y x+6y=18

Misha Larkins [42]

Subsitute -4y for x

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4 years ago

Now there is a square city of unknown size with a gate at the center of each side. There is a tree 20 b from the north gate. Tha

Brums [2.3K]

Answer:

The length of each side of the city is 250b

Step-by-step explanation:

Given

$a = 20$ --- tree distance from north gate

$b =14$ --- movement from south gate

$c = 1775$ --- movement in west direction from (b)

See attachment for illustration

Required

Find x

To do this, we have:

$\triangle ADE \sim \triangle ACB$ --- similar triangles

So, we have the following equivalent ratios

$AE:DE = AB:CB$

Where:

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Substitute these in the above equation

$20:x/2 = 20 + x + 14: 1775$

$20:x/2 = x + 34: 1775$

Express as fraction

$\frac{20}{x/2} = \frac{x + 34}{1775}$

$\frac{40}{x} = \frac{x + 34}{1775}$

Cross multiply

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Open bracket

$x^2 + 34x = 71000$

Rewrite as:

$x^2 + 34x - 71000 = 0$

Expand

$x^2 + 284x -250x - 71000 = 0$

Factorize

$x(x + 284) -250(x + 284)= 0$

Factor out x + 284

$(x - 250)(x + 284)= 0$

Split

$x - 250 = 0 \ or\ x + 284= 0$

Solve for x

$x = 250 \ or\ x =- 284$

x can't be negative;

So:

$x = 250$

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3 years ago

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topjm [15]

2 is greater than one and 3 and 4 and 5

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3 years ago

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