Question

I am not too sure how to figure out B and C

Answer 1

The given equation is

`d=0.15t`

d is the distance in miles

t is the time in seconds

b. We need to find the distance in 30 seconds

Then substitute t by 30 in the equation

`d=0.15*30`

The zero in 30 we move the decimal point 1 place to right then

`\begin{gathered} d=1.5*3 \\ d=4.5\text{ miles} \end{gathered}`

It will travel 4.5 miles in 30 seconds

c. We need to find the time to travel 12.75 miles

Then substitute d in the equation by 12.75

`12.75=0.15t`

Divide 12.75 by 0.15 to find t

`t=(12.75)/(0.15)`

The decimal point up will cancel the decimal point down

`\begin{gathered} t=(1275)/(15) \\ t=85 \end{gathered}`

It will take 85 seconds to travel 12.75 miles