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WARRIOR [948]
3 years ago
9

Two buses leave towns 520 kilometers apart at the same time and travel toward each other. One bus travels 16 km/h slower than th

e other. If they meet in 2 hours, what is the rate of each bus?
Mathematics
1 answer:
vampirchik [111]3 years ago
3 0

Answer:

122 km/h

138 km/h

Step-by-step explanation:

distance = speed * time

One bus travels 16 km/h slower than the other

(s * 2)  + (s - 16)2 = 520

2s + 2s - 32 = 520

4s = 552

s = 552/4

s = 138 km/h

s - 16 = 122 km/h

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She worked as a carpenter for 12 hours and as a blacksmith for 18 hours.

Assuming you mean she earned $20 as a carpenter and $25 as a blacksmith per hour, with a total of 30 hours for $690,
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Subtract b from each side so that c = 30 - b
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