Answer:
825 miles
Step-by-step explanation:
set up a ratio problem
1 inch/150 miles = 5.5 inch/x
x = 5.5 x 150
x = 825
You can see that each term is twice the previous one, with inverted sign.
You double a number by multiplying it by two, and you change its sign by multiplying it by -1.
So, you multiply each term by 2 and by -1, which results in a multiplication by -2.
Since we start with 3, the terms are
and so on. So, the general term is
7.38 is 7.5% of 98.4
(7.5 /100 ) x=7.38
so x= 738/7.5= 98.4
hope this helps