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erma4kov [3.2K]
3 years ago
8

8a + 5b = 9; 3a + 2b = 4

Mathematics
2 answers:
Marianna [84]3 years ago
7 0
This the the awnser for this

nevsk [136]3 years ago
4 0

Solve for the first variable in one of the equations, then substitute the result into the other equation.
a
=
−
2
,
b
=
5
a
=
-
2
,
b
=
5
T
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aev [14]
If the wall with 4 ft. of storage area can fit 6 sections of plant and the wall with 7 ft. Can fit 5, that means each section is 3 ft. because 7-4=3, so that extra section on the wall with 4 ft. You do this because there is one extra section on the wall with four. Knowing this, the wall with 7 ft. Would be the 7 ft. + 5 sections of 3 ft. So 7+(5x3) = 22. On the wall with 4 ft., do the same,
4+(6x3) =22. Since they are equal and the walls are supposed to be equal, we can confirm this is the right answer
6 0
3 years ago
What is the equation that has a slope of -4 and passes through the coordinates (-4,14)
Agata [3.3K]

Answer:

y=-4x-2

Step-by-step explanation:

y-y1=m(x-x1)

y-14=-4(x-(-4))

y-14=-4(x+4)

y=-4x-16+14

y=-4x-2

4 0
2 years ago
Geometry help? How would I solve this?
Firlakuza [10]
\bf \textit{sum of interior angles in a regular polygon}
\\\\\\
n\theta=180(n-2)\qquad 
\begin{cases}
n=\textit{number of sides}\\
\theta=\textit{angle in degrees}
\end{cases}
\\\\\\
\textit{notice, your two polygons, are just two regular octagons}\\
\textit{OCTAgons, thus OCTA = 8, 8 sides, thus}
\\\\\\
n\theta=180(n-2)\qquad n=8\implies 8\theta=180(8-2)
\\\\\\
\theta=\cfrac{180\cdot 6}{8}

so... that's how much an internal angle is
now, subtract that from 180 and you get the angle outside, in the picture

subtract that outside angle twice from 180, and you get angle "2"
because angle 2 is in the same triangle as those two outside angles, and all internal angles in a triangle is 180, thus 180 - (those two angles) is angle "2"

8 0
3 years ago
Lewis recently filed bankruptcy and now has a poor credit rating. He moved into an apartment and is setting up new accounts for
Anna11 [10]
The answer should be A.
6 0
3 years ago
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Stonehege es uno de los grandes monumentos prehistóricos se en Inglaterra todas las piedras exteriores están separadas a 15 m de
shutvik [7]
You might wanna put this in spanish.
3 0
3 years ago
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