Answer:
Step-by-step explanation:
speed x time = distance
s (1.5) = 105
1.5s=105
s = 70mph
d(t) = 70t
Answer:
The equation that relates y and x is [tex]y=x+612 mi[/tex], and the equation that relates x and d is [tex]4d=x[/tex].
Step-by-step explanation:
Step 1: First we know that the total distance is equal to y. The distance traveled in 4 hours equals x, and the distance from point x to y equals 612 miles. Adding x to the remaining 612 miles gives the total distance y.
[tex]y=x+612 mi[/tex]
Step 2: To know the relationship between x and d, we must first raise the speed during the journey to x.
[tex]v=\frac{x}{4h}[/tex]
Then, we set the speed d e equal v:
[tex]v=\frac{d}{h}[/tex]
[tex]\frac{x}{4h} = \frac{d}{h}[/tex]
Clearing x we get:
[tex]x=4h * \frac{d}{h}[/tex]
[tex]x=4d[/tex]
Have a nice day!
