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zysi [14]
3 years ago
13

An equations'system

Mathematics
1 answer:
yaroslaw [1]3 years ago
3 0

1. \: x =  \frac{11}{9} y +  \frac{5}{9}  \\  x =  \frac{5}{6} y +  \frac{1}{6}  \\  \\ 2. \: x =  \frac{3}{2} y + 2 \\ x =  \frac{3}{2} y + 2

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Solve |1 - 4x| &gt; 7 and Solve |5x - 1| &lt; 1<br> PLEASE EXPLAIN!
denis-greek [22]
Since |1-4x|>7 it can also be 1-4x<-7
so you get 1-4x>7 then get the x by its self -4x>7 then you make the x positive. multiply by -1 so you switch the sign 4x<7 divid by 4 and you get x<7/4 now you go on to the other equation 1-4x<-7 you get the x by itself and get -4x<-8 and multiply by -1 to get a positive number so you swith the sign 4x>8 so you didid by 4 and get x>2 so you get an interval notation of (-infinity,7/4) u (2,+infinity)

the |5x-1|<1 interval notation is (-2/5 ,0)
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3 years ago
Oder the least to greatest: -3, -10, -1 please helppp
marusya05 [52]
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3 0
3 years ago
Read 2 more answers
A pound of ground beef costs $5. what is the cost of 1/2 pound?
SVEN [57.7K]

Answer:

$2.50

Step-by-step explanation:

x/5 = 1/2

x is equal to 1 because it is half of the total and 1 is half of 2.

5 is equal to 2 because it is the whole amount and 2 is also the whole amount.

If you then solve for x by doing

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7 0
3 years ago
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Luba_88 [7]

Answer:

$0.20*x + 55$

Step-by-step explanation:

x - is the number of  text messages

Since x the number of text messages it means that to get the amount of money a person will spend will be: $0.20 * x  

And to get the final equation we will just need to add $0.20 + x to $55 =

$0.20 * x + $55

8 0
3 years ago
Is it 6, 9, 18, or 8?
GarryVolchara [31]

Answer:

8

Step-by-step explanation:

I know because I got distracted question before

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