2 years ago

Determine the area of a rectangle with length of (x+3) and a width of (x-7)

Mathematics

1 answer:

Musya8 [376]2 years ago

5 0

X+3 * x-7
=x^2- 4x - 21

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Solve for each unknown angle measure...

zepelin [54]

Answer:

because l1//l2 => z + 65 = 180

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x + 65 = 90

<=> z = 115

y = 25

x = 25

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2 years ago

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zhannawk [14.2K]

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3 years ago

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i When 20 is added to a certain number and the sun is divided by 3, the result is 3 times the number, find the number.

Bingel [31]

Answer:

$let \: the \: number \: be \: x \\ \frac{20 + x}{3} = 3x \\ \frac{3(20 + x)}{3} = (3x)3 \\ 20 + x = 9x \\ 20 = 9x - x \\ 20 = 8x \\ \frac{20}{8} = \frac{8x}{8} \\ x = 2.5$

Step-by-step explanation:

Hope that this is helpful .

Have a great day.

3 0

2 years ago

Someone help with this

timama [110]

Answer:

18% decrease

Step-by-step explanation:

7,500 - 6,125 = $1,375
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I hope this helps!

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3 years ago

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Step-by-step explanation:

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2 years ago