Answer:
?
Step-by-step explanation:
By difference I think you mean how far away from? I don't really know what you mean by this but I will try to help.
1/2-4=-3 1/2
2-(-3 1/2)=5 1/2
<u>-3 1/2</u>
5 1/2
Above is a fraction.
I hope that I helped. Sorry if it wasn't the answer you were looking for.
Answer:
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Scientists need technology to figure out other stuff. For example, A computer is used to research.
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 :)
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