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poizon [28]
3 years ago
8

3x + x + 8 = 20 hhhhhhhhhhhssjsjjsjzjsjjsjsjsjsjsjsjsjsjsjjs

Mathematics
1 answer:
Flura [38]3 years ago
8 0

Answer:

×=3

Step-by-step explanation:

3× + × + 8 = 20

4×= 12

divide 4 with 12 and it will be 3

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il63 [147K]

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21 C

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3 years ago
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goldenfox [79]

Answer:

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vagabundo [1.1K]

Answer:

6=6

Step-by-step explanation

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3 years ago
Two angles are supplementary. If the measure of the first angle is 88° what is the measure of the second angle?
DiKsa [7]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The sides of the rectangle are in the ratio of 4:7. If its length is 31.5 in., find the width, the perimeter, and the area of th
AveGali [126]
Let \ell the length and w the width. By the ratio of the sides:

\dfrac{w}{\ell}=\dfrac{4}{7}\Longrightarrow \dfrac{w}{31.5}=\dfrac{4}{7}\Longrightarrow w=\dfrac{4\cdot31.5}{7}\Longrightarrow \boxed{w=18~in.}

Now, we'll find the perimeter p. We'll use the formula below:

p=2(\ell+w)\\\\
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The area of a rectangle is S=w\cdot\ell. Then:

S=w\cdot\ell\\\\
S=18\cdot31.5\\\\
\boxed{S=567~in.^2}
8 0
3 years ago
Read 2 more answers
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