1. 4.8 x 10^9
2. 2 x 10^6
Answer:
8 inch is your best buy
Step-by-step explanation:
8inch diameter =10 dollars
5 inch radius = 12 dollars
so if we get each equal to the diameter it should be 10 inch and that would be 24 dollars vs . 8 in for 10 dollars. So best buy would be 8 inch
First, subtract both sides by 8x and you would get:
1 - 11x = 3
Then, subtract both sides by 1 and you will get:
-11x = 2
Divide both sides by -11:
x = -2/11
Nancy's rate=27 mph
Greg's rate=45 mph
t=Greg's time
t+2=Nancy's time
Since they both traveled same distance then:
27(t+2)=45t
27t+54=45t
18t=54
t=3 hours
Greg will pass Nancy after 3 hours
