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3 years ago

11

Brennans rectangular kitchen has an area of 81 ft.² the kitchen is nine times as many square feet is Brian’s pantry if the recta

ngle and pantries 3 feet wide what is the length of the pantry

1 answer:

svp [43]3 years ago

4 0

The answer is 6561 because 81^2=6561

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Vvorth 1 points

viva [34]

Hi there!

»»————-　★　————-««

I believe your answer is:

"Add 4 to both sides, and then divide by 2. The solution is x = 12."

»»————-　★　————-««

Here’s why:

⸻⸻⸻⸻

To solve for 'x', we would have to use inverse operations.
We would first have to add four to both sides to undo the negative four. Addition is the opposite of subtraction.
We would then divide by 2 to isolate 'x'. Division is the opposite of multiplication.

⸻⸻⸻⸻

$\boxed{\text{Solving for 'x'...}}\\\\2x - 4 = 20\\------------\\\rightarrow 2x - 4 + 4 = 20 + 4\\\\\rightarrow 2x = 24\\\\\rightarrow \frac{2x=24}{2}\\\\\rightarrow \boxed{x = 12}$

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

6 0

3 years ago

The solution set for a pair of equations is (3, -1). One of the equations is 2y = x - 5. Which of the following could be the oth

timama [110]

The points is small sorry

4 0

4 years ago

As John walks 16 ft towards a chimney, the angle of elevation from his eye to the top of the chimney changes from 30° to 45°. Id

levacccp [35]

ANSWER

The height is $22ft$

EXPLANATION

Let the height of the chimney be x.

$\tan(45 \degree) = \frac{x}{y}$

$1 = \frac{x}{y}$

$x = y$

$\tan(30 \degree) = \frac{x}{16+ y}$

$\frac{ \sqrt{3} }{3} = \frac{x}{16 + y}$

Cross multiply

$\sqrt{3} (16 + y) = 3x$

$16 \sqrt{3} + y \sqrt{3} = 3x$

Put

$y = x$

into the equation;

$16 \sqrt{3} + x \sqrt{3} = 3x$

Group similar terms:

$16 \sqrt{3}= 3x - x \sqrt{3}$

$16 \sqrt{3}= (3 - \sqrt{3})x$

$\frac{16 \sqrt{3} }{3 - \sqrt{3} } = x$

$x=21.856$

The height of the chimney to the nearest feet is 22

6 0

3 years ago

0.13391963118/17(3.78)

erma4kov [3.2K]

Answer:

Simplify the expression.

0.02977742

Step-by-step explanation:

i think i hope its right

7 0

2 years ago

A 100% increase followed by a 33.33% decrease

podryga [215]

100-33.33= 66.67 (about 2\3-- --basicly it is)

3 0

4 years ago