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____ [38]
3 years ago
10

Word problem

Mathematics
2 answers:
ch4aika [34]3 years ago
7 0

Answer:67

Step-by-step explanation:

Cool

Vlada [557]3 years ago
6 0
C1 =15+0.50x C2=25+0.25x

15+0.50x=25+0.25x

0.25x=10
X=40
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Answer:

x = 10

Step-by-step explanation:

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<em><u>(times everything in the equation by 15 to get rid of the second fraction)</u></em>

30x+ 45 = 21x + 135

<em><u>(subtract 21x from 30x; subtract 45 from 135)</u></em>

9x = 90

<em><u>(divide 90 by 9)</u></em>

x = 10

<h2>Another solution:</h2>

2x/3 + 1 = 7x/15 + 3

<u><em>(find the LCM of 3 and 15 = 15)</em></u>

<u><em>(multiply everything in the equation by 15, then simplify)</em></u>

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<u><em>(subtract 7x from 10x; subtract 15 from 45)</em></u>

3x = 30

<em><u>(divide 30 by 3)</u></em>

x = 10

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