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Zepler [3.9K]
3 years ago
11

6. Which equation represents: "Seven times the difference of a number and tenis

Mathematics
2 answers:
enot [183]3 years ago
7 0

Answer:

12

Step-by-step explanation:

let the number=x

7(x-10)=x+2

7x-70=x+2

7x-x=2+70

6x=72

x=72/6=12

mojhsa [17]3 years ago
4 0
The correct answer would be 12
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My name is Ann [436]
Slope of the line
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3 years ago
a yard width is 2 less than it's length. If the perimeter of the yard is 20 feet determine the length and the width of the yard
Arte-miy333 [17]

Answer:

The length is 6 feet and the width is 4 feet

Step-by-step explanation:

Let x represent the length of the yard

The width can be represented by x - 2, since it is 2 less than the length.

Use the perimeter formula, P = 2l + 2w, where l is the length and w is width

Plug in the expressions and perimeter:

20 = 2x + 2(x - 2)

Solve for x:

20 = 2x + 2x - 4

20 = 4x - 4

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So, the length is 6. Plug this into x - 2 to find the width

x - 2

6 - 2

= 4

So, the length is 6 feet and the width is 4 feet

5 0
3 years ago
Shae is covering 3 walls in her bedroom with wallpaper. The measurement of each wall is 12 ft x 14 ft. A roll of wallpaper cover
katrin [286]
12*14*3= 504 square feet

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8 0
3 years ago
What is another equivalent expression for -3(7 +5g)
Ilya [14]

Answer:

-21 - 15g

Step-by-step explanation:

You just have to distribute the -3 into the expression.  

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⇒

7 0
3 years ago
A curve is traced by a point p(x,y) which moves such that its distance from the point a(-1,1) is three times its distance from t
Gre4nikov [31]
Refer to the figure shown below.

The point c, on line segment ab, is in a 3:1 ratio from a.
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x² + 2x + 1 + y² - 2y + 1 = 9x² - 36x + 36 + 9y² + 18y + 9
8x² - 38x + 8y² + 20y + 43 = 0
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Answer:
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8 0
3 years ago
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