Answer:
Step-by-step explanation:
f(x+68)=x
It would be A. It is A because 5 is negative, 2.1 is negative, 0.3 and 3.1 are positive. Also 5 is greater than 2.1, so in this case -5 would be before -2.1.
<span>Wanda started walking along a path 27 seconds before Dave. Wanda walked at a constant rate of 3 feet per second. Dave walked along the same path at a constant rate of 4.5 feet per second. How long after Dave starts walking will he catch up with Wanda ?
***
let x=travel time of Dave
x+27=travel time of Wanda
speed*travel time=distance (same for both Wanda and dave)
..
4.5x=3(x+27)
4.5x=3x+81
1.5x=81
x=54
How long after Dave starts walking will he catch up with Wanda ? 54 sec</span>
