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77julia77 [94]
3 years ago
10

Solve using elimination

Mathematics
1 answer:
Margarita [4]3 years ago
3 0
Well, it was good that you did subtract A from B to get
0=x^2-152x
then factor out the x (what do you mean it cannot be factored?)
0=x(x-152)
x=0 or 0=x-152 so x=152

so on day 0 and day 152

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20 points show work pls im in a hurry
Gwar [14]

Answer: since it doesnt say 620 is included , we can conclude that x>620, not x>=620 so the 8th week would be cut just short, so answer is 7

aka

fewer than 8 weeks

Step-by-step explanation:

1200-620=580

580/72.50=8

8 0
2 years ago
What is the slope indicated in the table below.
miskamm [114]
The answer to the problem is 5/-3
3 0
3 years ago
Read 2 more answers
What is the product?
Tanzania [10]

Answer:

=\begin{pmatrix}-5&6\\ 1&-4\end{pmatrix}

Step-by-step explanation:

\begin{pmatrix}-3&4\\2&-5\end{pmatrix}\begin{pmatrix}3&-2\\ 1&0\end{pmatrix}

Multiply the row of the first matrix to the column of the second matrix

\begin{pmatrix}-3&4\end{pmatrix}\begin{pmatrix}3\\ 1\end{pmatrix}=\left(-3\right)\cdot \:3+4\cdot \:1

\begin{pmatrix}-3&4\end{pmatrix}\begin{pmatrix}-2\\ 0\end{pmatrix}=\left(-3\right)\left(-2\right)+4\cdot \:0

\begin{pmatrix}2&-5\end{pmatrix}\begin{pmatrix}3\\ 1\end{pmatrix}=2\cdot \:3+\left(-5\right)\cdot \:1\

\begin{pmatrix}2&-5\end{pmatrix}\begin{pmatrix}-2\\ 0\end{pmatrix}=2\left(-2\right)+\left(-5\right)\cdot \:0\

=\begin{pmatrix}\left(-3\right)\cdot \:3+4\cdot \:1&\left(-3\right)\left(-2\right)+4\cdot \:0\\ 2\cdot \:3+\left(-5\right)\cdot \:1&2\left(-2\right)+\left(-5\right)\cdot \:0\end{pmatrix}

simplifying them we get

=\begin{pmatrix}-5&6\\ 1&-4\end{pmatrix}

8 0
3 years ago
los trabajadores de una mina se encuentran a 20 metros bajo tierra .Si excavan 3 metros desde alli suben otros 8 metros para cog
Yakvenalex [24]

Step-by-step explanation:

la carretilla estaba a unos 15 metros de altura

8 0
2 years ago
Solve and check 8-(6-8x) =4x+4
navik [9.2K]
Greetings!

"Solve and check 8-(6-8x)=4x+4"...

Solve for x<span>:
</span>8-(6-8x)=4x+4
Remove the Parenthesis.
8-6-8x=4x+4
Simplify.
2-8x=4x+4
Add -4 to both sides.
(2-8x)+(-4)=(4x+4)+(-4)
Simplify.
-2-8x=4x
Add 8x to both sides.
(-2-8x)+8x=(4x)+8x
Simplify.
-2=12x
Divide both sides by 12.
(-2)/12=(12x)/12
Simplify.
-0.166666667=x

The answer is: <em>x=-0.166666667

</em>Hope this helps.
<em></em>-Benjamin
7 0
3 years ago
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