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.

Question

asked May 18, 2021 228k views

2 Answers

Andrew Leader · Answer 1 · 2021-05-25T01:29:18+0000

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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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