Question

Question #3613e

Answer 1

I got: `7/20"hours"`

Explanation:

The distance the turtle covers from her home to the seashore is:
`d=vt=3/10*14/20=21/100"miles"`
travelling at `2*3/10=3/5"miles"/"hour"`
she will cover the same distance in the time:
`t=d/v=(21/100)/(3/5)=21/100*5/3=7/20"hours"`

I think we can also use a prportion (maybe the reason why it is in "Algebra") where:

so we get:
`(3/10)/(2*3/10)=x/(14/20)`
rearranging:
`x=14/20*(cancel(3/10))/(2*cancel(3/10))=7/20"hours"`