the domain is a range of values of t (the x variable) that can give real values of y
Since the range ( y variable) is Rp= [0,100] ( round brackets mean excluding the two numbers while square means including ) since there are only 100 sheets of paper, no more no less
so the most t can be is when p=0, when t= 12.5, so domain is Dp= [0,12.5] after 12.5 min, there will be no paper left in the printer, so nothing can be printed
for D, sub t=7, so p(t) is the number of sheets left in the printer, you want to find the no. of sheets deducted so
p(t)=-8(7)+100
=100-15
=85
no. of pages in her report= 100-85= 15
Answer:
Well going with the answer mathematically, it would take 2.5 hours for 2 people to cut the grass.
Answer:
3 2/3 is in simplest form and 2 4/11 is in simplest form.
Step-by-step explanation:
If the denomiator is a odd number you can not put it in simplest form.
Create a system of 2 equations
Let x be daily fee and y the mileage charge, then
4x + 370y = 244.50...........(1)
3x + 190y = 161.50..............(2)
If we multiply (1) by 3 and (2) by -4 and add the 2 equations we eliminate x:-
12x + 1110y = 733.50
-12x - 760y = -646 Adding :-
350y = 87.5 so y = 0.25
Plugging y = 0.25 into eqation (1) we get 4x = 244.50 - 0.25 * 370
giving x = 38
Answer is daily fee = $38 and mileage charge = $0.25 per mile.
