Josh and Amber spot each other on the boardwalk when they ar

Josh and Amber spot each other on the boardwalk when they are 51 feet apart. Amber does not move, but Josh starts walking toward Amber at a constant rate of 5 feet per second. Let t represent the varying values of the quantity \"the varying number of seconds elapsed since Josh started walking towards Amber\" and let d represent the varying values of the quantity \"the varying number of feet between Josh and Amber\". Write a formula that gives d in terms of t. Write a formula that gives t in terms of d.

Solution

Let t represent the varying values of the quantity \"the varying number of seconds elapsed since Josh started walking towards Amber\" and let d represent the varying values of the quantity \"the varying number of feet between Josh and Amber\".

distance moved by Josh = speed*time

= 5*t feet

So, te distance between Josh and Amber = 51 - distance moved by Josh

= 51 - 5t

d = 51 -5t