Answer:
16.25 ft
Step-by-step explanation:
Given: Width of walkway around pool is 100 foot by 60 foot.
Total fencing to enclose walkway is 450 ft.
Now, finding the value of maximum width of walkway around pool.
Lets assume the maximum width of walkway is "x".
Each dimension of the pool will have width added to
∴ Total measurement of dimension of walkway is
Next, we know total fencing will be equal to the perimeter of walkway area.
subtituting the value of length and width of walkway.
⇒
Opening parenthesis.
⇒
dividing 2 both side.
⇒
Subtracting 160 both side
⇒
Cross multiplying
⇒ x=
∴ Maximum width of walkway is 16.25 ft.
I think the answer would be B
Answer:
The difference is 48 meters
Step-by-step explanation:
<u><em>The question is</em></u>
What is the difference of the hikers' altitudes?
Let
x -----> the Melissa's altitude in meters
y ----> Brian's altitude in meters
we have that
---> is positive because is above sea level
---> is negative because is below sea level
Remember that the sea level is the altitude equal to zero
<em>Find the difference</em>
To find out the difference of the hikers' altitudes, subtract Brian's altitude from Melissa's altitude
so
Remember that (-1)(-1)=+1