Here is the answer to your question
Answer:
5 more weeks
Step-by-step explanation:
5 more weeks if he already sold 15. 10 more weeks if you exclude the 15 he already sold.
Answer:
x=1 meter
Step-by-step explanation:
step 1
Find the area of the rectangular pool

we have

substitute

step 2
Find the area of rectangular pool including the area of the walkway
Let
x ----> the width of the walkway
we have

substitute

step 3
Find the area of the walkway
To find out the area of the walkway subtract the area of the pool from the area of rectangular pool including the area of the walkway
so

step 4
Find the value of x if the area of the walkway equal the area of the pool
so

Solve the quadratic equation by graphing
The solution is x=1 meter
see the attached figure
Speed = Distance/Time
Cat's Speed 9ft/s
Dog's Speed 6ft/s
Let x be the distance travelled by the Cat,
the distance travelled by te dog =165 -x,
and t, the time spend
Cat's Speed 9ft/s =x/t
Dog's Speed 6ft/s =(165 - x)/t
Solving for t you will get t= 11 seconds