Please Help Me Im timed
1 answer:
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Alright, lets get started.
Suppose first mechanic charges= x
So, second mechanic charges will be = (because total of their rates was 125)
first mechanic worked for 5 hours, and the second mechanic worked for 15 hours and together they charged a total of $1225
Means
Adding 10 x in both sides
Subtracting 1225 from both sides
Dividing 10 in both sides
x = 65
For second mecahnics rate = 125 - 65 = 60
Hence The mechanic who worked 5 hours charged $ 65 per hour, the one who worked 15 hours charged $ 60 per hour: Answer
Hope it will help :)
Answer:
The distance paddling out on a lake is 2 kilometres and the distance returning back is also 2 kilometres. In total, 4 kilometres.
Step-by-step explanation:
Let t hours be the time it takes Roger to puddle out on a lake. Then hours is the time it takes him to return (note that 1 hour and 30 minutes is exactly
hours).
1. If he paddles out on a lake at 4 kph for t minutes, then the distance is
2. If he returns at 2 kph, then the distance is
3. These distances are the same, thus
The distance paddling out on a lake is 2 kilometres and the distance returning back is also 2 kilometres. In total, 4 kilometres.