Answer: +$45
Step-by-step explanation: if his actual pay for the week was $100 then from the question he incorrectly calculated it as {$100 + $45} = $145 which is $45 above his actual pay.
Error = measured value - actual
value.
= $145 -$100 =$45.
NOTE: since the value he assumed{$145} is greater than his actual pay{$100}, we have to include a positive sign to the error{$45}.
Therefore, Error = +$45.
Once they're empty, I guess.
Did you put it the wrong way around?
Because it would be after four hours in this case.
3 1
---- = -----
15 5
12 1*12 1
---- = -------- = -----
60 5*12 5
so from these above wrote result that these fractions are equals
hope helped