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ANSWER WILL GET 50 POINTS. A boy walks for x hours at 33 mph and bicycles for (5−x) hours at 93 mph. If the total distance traveled is d miles, express d in terms of x.

User Wbamberg
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2 Answers

1 vote

Answer:

d(x)=-60+465

Explanation:

User Brahim Boulkriat
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0 votes

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33 \: \: (mile)/(h) = (d(1))/(t) \\


33 \: \: (mile)/(h) = (d(1))/(x) \\


d(1) = 33x \: \: miles

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93 \: \: (mile)/(h) = (d(2))/(t) \\


93 \: \: (mile)/(h) = (d(2))/(5 - x) \\


d(2) = 93 * (5 - x) \: \: \: miles


d(2) = 465 - 93x \: \: \:miles

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d(total) =d(x) = d(1) + d(2) \\


d(x) = 33x + 465 - 93x


d(x) = - 60x + 465

Done...

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User Andrew Leader
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