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3 years ago

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Kayden is a stunt driver. One time, during a gig where she escaped from a building about to explode(!), she drove at a constant

speed to get to the safe zone that was 160 meters away. After 3 seconds of driving, she was 85 meters away from the safe zone. Let D represent the distance (in meters) from the safe zone after t seconds. Complete the equation for the relationship between the distance and number of seconds.

1 answer:

krek1111 [17]3 years ago

3 0

$d=160-25t$

Step-by-step explanation:

Let $d$ be the distance between Kayden and safe zone at any time.

It is given that initially $d=160$

Lrt her speed be $v$

Since the speed is constant,the distance covered by her in $t$ seconds= $v\times t$

So,the distance between her and safe zone after $t$ seconds is $160-vt$

It is given that after $3$ seconds, $d=85$

So, $160-3v=85$

$3v=75$

$v=25$

So, $d=160-3t$

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