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Black_prince [1.1K]
4 years ago
12

Tiya earns $7 an hour mowing her neighbor's lawn.

Mathematics
1 answer:
jeka57 [31]4 years ago
6 0
7x+2y=9xy-1=8xy
i love mathhomework

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In the function f(x) = 2x,f(x) is which of the following
Keith_Richards [23]

Answer:

Your answer is C . Undefined

7 0
3 years ago
Solve each system by elimination by multiplying both equations. eliminate y first. show all work.
Alex17521 [72]
First \mathrm{Multiply\:}10x-3y=18\mathrm{\:by\:}3:\quad 30x-9y=54
Then \mathrm{Multiply\:}6x-10y=-22\mathrm{\:by\:}5:\quad 30x-50y=-110
To get \begin{bmatrix}30x-9y=54\\ 30x-50y=-110\end{bmatrix}
So...
30x-50y=-110 \ \textgreater \  \begin{bmatrix}30x-9y=54\\ -41y=-164\end{bmatrix}
-41y=-164 \ \textgreater \  \mathrm{Divide\:both\:sides\:by\:}-41 \ \textgreater \  \frac{-41y}{-41}=\frac{-164}{-41}
To get y = 4.
\mathrm{For\:}30x-9y=54\mathrm{\:plug\:in\:} \:y=4 \ \textgreater \  30x-9\cdot \:4=54
\mathrm{Multiply\:the\:numbers:}\:9\cdot \:4=36 \ \textgreater \  30x-36=54 \ \textgreater \
Next \mathrm{Add\:}36\mathrm{\:to\:both\:sides} \ \textgreater \  30x-36+36=54+36 \ \textgreater \  \mathrm{Simplify} \ \textgreater \  30x=90
Finally \mathrm{Divide\:both\:sides\:by\:}30 \ \textgreater \  \frac{30x}{30}=\frac{90}{30} \ \textgreater \  x = 3
Therefore our solutions are y = 4, x = 3
8 0
3 years ago
HELPPPP PLSSS its for a math exam
patriot [66]

Answer:

pie is irrational nimber

8 0
3 years ago
Read 2 more answers
Solve for v v - 20 = 8
slava [35]

Answer:

vv = v {}^{2}

v {}^{2}  - 20 = 8

v {}^{2}  = 20 + 8

v {}^{2}  = 28

v =  \sqrt{28}

v = 5.292

<h2>^-^</h2>
6 0
3 years ago
17) Find the surface area of the right triangular prism shown below:<br> 5<br> 2<br> 5/2<br> 3/2
harkovskaia [24]

Answer:

D

Step-by-step explanation:

They didn't provide the number for one of the faces btw..

7 0
3 years ago
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