Answer:

Step-by-step explanation:




21-5=16
16/-2=-8
x=8
so 3-(-8)=3+8
=11
Answer:
Step-by-step explanation:
We translate Grayson's charges through the following mathematical expression : 35 h + 35 where h is the number of hours while that of Ian is 45h + 15. The number of hours where the charges are equal is 35h + 35 = 45h + 15; h = 2 hrs. Hence the number of hours minimum must be above 2 hours.
2/440 Original Mathematical Expression.
1/220 Divide numerator and denominator by 2.
This equals . . .
0.004545454545 repeating
(I just plugged 1/220 into calculator)
Final Answer: 1/220 or 0.004545454545 repeating