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STatiana [176]
2 years ago
11

Please help!!! thank you! ​

Mathematics
1 answer:
Daniel [21]2 years ago
4 0

Answer: -13x - 2

Step-by-step explanation:

-6x + -7x = -13x

3+-5 = -2

-13x - 2

-Gage Millar, Algebra 2

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The length of a rectangle is 1 inch less than twice the width. the area is 21 inches^2 what is the length?
ale4655 [162]
Hi.

Formula for area: A = 2l + 2w, where l is the length and w is the width.

Given information:
• l = 2w - 1
• A = 21 in^2

We can plug in our values accordingly and solve for w.

A = 2l + 2w
21 = 2(2w - 1) + 2w
21 = 4w - 2 + 2w
23 = 6w - 2
23 = 6w
3.83 = w

Plug 3.83 for w into 2w - 1 to find length.

2(3.83) - 1
7.66 - 1
6.66

Finally, check your work by plugging your values into the original equation.

21 = 2(6.66) + 2(3.83)
21 = 13.32 + 7.66
21 = 20.98

Answer:
The length is approximately 6.66 inches.
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3 years ago
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Answer:

11

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Simplify both sides of the equation.

Subtract 15 from both sides.

Divide both sides by -2.

x = 11

3 0
3 years ago
How do we use inclined planes? give an example<br><br>How is a wedge related to a inclined plane?
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A totem pole casts a 20 meter shadow when the angle of elevation of the sum is 45what is the distance from the top of the totem
abruzzese [7]

Answer:

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It may help to make a diagram. Because this is a 45 45 90 triangle, you can use those rules to help solve.

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dsp73
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3 years ago
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