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sertanlavr [38]
3 years ago
8

URGENT Solve 2(4 x + 3) < 5 x + 21. { x | x < 9} { x | x > -5} { x | x > -9} { x | x < 5}

Mathematics
1 answer:
zmey [24]3 years ago
6 0

Answer:

{ x | x < 5}

Step-by-step explanation:

2(4 x + 3) < 5 x + 21

8x + 6 < 5x + 21

3x < 15

 x < 5

Answer

{ x | x < 5}

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in one day annie traveled 5 times the sum of the number of hours brian traveled and 2. Together they traveled 20 hours. Find the
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In order to solve this mathematical problem we can first consolidate and observe the given values and the values that are not known in the stated problem. Annie traveled 5 times the sum of the number of hours Brian traveled and 2. Together they traveled 20 hours. Find the numbers.
Equation, <span><span>
1. </span><span> 5(y) + 2 = 20</span></span>
<span><span>2. </span><span> 5y = 20 – 2</span></span> <span><span>
3. </span><span> 5y = 18</span></span>
<span><span>4. </span><span> Y = 18 / 5</span></span> <span><span>
5. </span><span> Y = 3.6</span></span> <span><span>
6. </span><span> 5y = 5(3.6)</span></span> <span><span>
7. </span><span> Annie = 18</span></span>
Hence, Annie traveled 18 hours while Brian traveled 3.6 hours.  



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