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2 years ago

What is 2x+1<8x-2 I dont get it please help

Mathematics

1 answer:

rjkz [21]2 years ago

6 0

Answer: x> 1/2

Step-by-step explanation:

if 2x+1∠ 8x-2

inequality , treat this problem like any other equation

have the unknown(x) in one side, and the values on the other side

2x-8x < -1-2

-6x< -3 we multiply by -1, do not forget if we multiply by -1 the sign will change

6x>3 divide by 3

2x>1

x>1/2

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Number of text messages Pablo sent: 32

Step-by-step explanation:

Total messages sent = 69

Let,

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Messages sent by Miguel = y

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According to given statement;

x+y+z=69 Eqn 1

y=x+5 Eqn 2

z=2x Eqn 3

Putting Eqn 2 and 3 in Eqn 1

$x+(x+5)+2x=69\\x+x+5+2x=69\\4x=69-5\\4x=64$

Dividing both sides by 4;

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Number of text messages Miguel sent: 21

Number of text messages Pablo sent: 32

Keywords: addition, linear equation

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