Answer:
#1: 11 cm
#2: 16.5 in
#3: 2.5 feet
Step-by-step explanation:
#1
Solve for width by substracting 2l on both sides to isolate 2w

or

Replace.

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#2


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#3

Solve for l

Answer:
84%
Step-by-step explanation:
The first step is to write 21 as a fraction of 25, which is simply
21/25
Now we just need to convert this fraction to a percentage :
21/25 = 84
So, 21 is 84% of 25
So the ration is 4:7
The total of houses is 32 new houses. What I did was I divided 32 by 4:
32/4 = 8
That means that the ratio (4:7) would be multiplied by 8 (only the :7 part):
7 * 8 = 56
There are 56 old houses (the ratio is now 32:56)
<em>Thank you and can you please give me brainly :3</em>
<em />
Answer:
![\sqrt[3]{5x+10}=5 / ^{3}\\ 5x+10=125\\5x=115/:5\\x=23](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B5x%2B10%7D%3D5%20%2F%20%5E%7B3%7D%5C%5C%20%205x%2B10%3D125%5C%5C5x%3D115%2F%3A5%5C%5Cx%3D23)
If you mean that :
this is
![\sqrt[3]{5x}+10=5 /^{3} \\5x+1000=125\\5x=-875/:5\\x=-175](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B5x%7D%2B10%3D5%20%2F%5E%7B3%7D%20%5C%5C5x%2B1000%3D125%5C%5C5x%3D-875%2F%3A5%5C%5Cx%3D-175)
Step-by-step explanation:
Although the terms might seem intimidating, this is a simple substitution problem.
X + Y = _______
Substitute the values of X and Y in terms of w
(7w^2 + 4w - 6) + (w^2 - 11w + 13) = ______
Now all you need to do is combine like terms (terms that have the same variables raised to the same power)
8w^2 - 7w + 7
Final Answer: 8w^2 - 7w + 7